Merge translation files from master branch.

1 files changed, 595 insertions, 595 deletions

diff --git a/po/zh_CN.po b/po/zh_CN.po
index 68338e4..8b42b68 100644
--- a/po/zh_CN.po
+++ b/po/zh_CN.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: qalculate_tde\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-05-11 04:29+0200\n"
+"POT-Creation-Date: 2021-07-07 18:33+0000\n"
 "PO-Revision-Date: 2007-08-01 13:17+0800\n"
 "Last-Translator: Roy Qu <royqh1979@gmail.com>\n"
 "Language-Team: Simplified Chinese\n"
@@ -30,1054 +30,1054 @@ msgid ""
 "Your emails"
 msgstr "royqh1979@gmail.com"
 
-#: kqalculate.cpp:264
+#: kqalculate.cpp:267
 msgid "Remove from System Tray"
 msgstr "从系统托盘中移除"
 
-#: kqalculate.cpp:265 qalculateeditdatasetdialog.cpp:471
-#: qalculateplotdialog.cpp:226
+#: kqalculate.cpp:268 qalculateeditdatasetdialog.cpp:472
+#: qalculateplotdialog.cpp:228
 msgid "Hide"
 msgstr "隐藏"
 
-#: kqalculate.cpp:286 kqalculate.cpp:4484 kqalculate.cpp:5915
+#: kqalculate.cpp:289 kqalculate.cpp:4487 kqalculate.cpp:5918
 msgid "Enter"
 msgstr "输入"
 
-#: kqalculate.cpp:287 kqalculate.cpp:513 kqalculate.cpp:4485
-#: kqalculate.cpp:4492 kqalculate.cpp:5916
+#: kqalculate.cpp:290 kqalculate.cpp:516 kqalculate.cpp:4488
+#: kqalculate.cpp:4495 kqalculate.cpp:5919
 msgid "="
 msgstr "="
 
-#: kqalculate.cpp:289 kqalculate.cpp:514 kqalculate.cpp:4489
-#: kqalculate.cpp:4490
+#: kqalculate.cpp:292 kqalculate.cpp:517 kqalculate.cpp:4492
+#: kqalculate.cpp:4493
 msgid "Calculate expression and add to stack"
 msgstr "计算表达式，并将结果加入到数据栈中"
 
-#: kqalculate.cpp:290 kqalculate.cpp:515 kqalculate.cpp:4493
-#: kqalculate.cpp:4494
+#: kqalculate.cpp:293 kqalculate.cpp:518 kqalculate.cpp:4496
+#: kqalculate.cpp:4497
 msgid "Calculate expression"
 msgstr "计算表达式"
 
-#: kqalculate.cpp:296 kqalculate.cpp:5918
+#: kqalculate.cpp:299 kqalculate.cpp:5921
 msgid "Store"
 msgstr "暂存"
 
-#: kqalculate.cpp:298
+#: kqalculate.cpp:301
 msgid "Store result as variable"
 msgstr "将结果暂存为变量"
 
-#: kqalculate.cpp:301 kqalculate.cpp:5920 qalculateconvertunitsdialog.cpp:42
+#: kqalculate.cpp:304 kqalculate.cpp:5923 qalculateconvertunitsdialog.cpp:44
 msgid "Convert"
 msgstr "换算"
 
-#: kqalculate.cpp:303
+#: kqalculate.cpp:306
 msgid "Convert units in result"
 msgstr "换算结果中的单位"
 
-#: kqalculate.cpp:313
+#: kqalculate.cpp:316
 msgid "Enter expression here"
 msgstr "在这里输入表达式"
 
-#: kqalculate.cpp:322
+#: kqalculate.cpp:325
 msgid "status"
 msgstr "状态"
 
-#: kqalculate.cpp:354 qalculateeditdataobjectdialog.cpp:71
+#: kqalculate.cpp:357 qalculateeditdataobjectdialog.cpp:72
 msgid "Exact"
 msgstr "精确"
 
-#: kqalculate.cpp:355
+#: kqalculate.cpp:358
 msgid "Toggle exact mode"
 msgstr "切换精确模式"
 
-#: kqalculate.cpp:358 kqalculate.cpp:1070
+#: kqalculate.cpp:361 kqalculate.cpp:1073
 msgid "Fraction"
 msgstr "分数"
 
-#: kqalculate.cpp:359
+#: kqalculate.cpp:362
 msgid "Toggle fractional display"
 msgstr "切换分数显示"
 
-#: kqalculate.cpp:363
+#: kqalculate.cpp:366
 msgid "Numerical display"
 msgstr "数值显示格式"
 
-#: kqalculate.cpp:366 kqalculate.cpp:1046 qalculateresultdisplay.cpp:288
+#: kqalculate.cpp:369 kqalculate.cpp:1049 qalculateresultdisplay.cpp:289
 msgid "Normal"
 msgstr "普通"
 
-#: kqalculate.cpp:367 kqalculate.cpp:1048 qalculateresultdisplay.cpp:291
+#: kqalculate.cpp:370 kqalculate.cpp:1051 qalculateresultdisplay.cpp:292
 msgid "Engineering"
 msgstr "工程"
 
-#: kqalculate.cpp:368 kqalculate.cpp:1050 qalculateresultdisplay.cpp:294
+#: kqalculate.cpp:371 kqalculate.cpp:1053 qalculateresultdisplay.cpp:295
 msgid "Scientific"
 msgstr "科学"
 
-#: kqalculate.cpp:369
+#: kqalculate.cpp:372
 msgid "Pure"
 msgstr "纯浮点"
 
-#: kqalculate.cpp:370 kqalculate.cpp:1054
+#: kqalculate.cpp:373 kqalculate.cpp:1057
 msgid "Simple"
 msgstr "简单"
 
-#: kqalculate.cpp:372
+#: kqalculate.cpp:375
 msgid "Base in result"
 msgstr "结果所用进制"
 
-#: kqalculate.cpp:376 kqalculate.cpp:1029 qalculatesetbasedialog.cpp:35
+#: kqalculate.cpp:379 kqalculate.cpp:1032 qalculatesetbasedialog.cpp:35
 #: qalculatesetbasedialog.cpp:48
 msgid "Binary"
 msgstr "二进制"
 
-#: kqalculate.cpp:377 kqalculate.cpp:1031 qalculatesetbasedialog.cpp:36
+#: kqalculate.cpp:380 kqalculate.cpp:1034 qalculatesetbasedialog.cpp:36
 #: qalculatesetbasedialog.cpp:49
 msgid "Octal"
 msgstr "八进制"
 
-#: kqalculate.cpp:378 kqalculate.cpp:1033 kqalculate.cpp:1066
+#: kqalculate.cpp:381 kqalculate.cpp:1036 kqalculate.cpp:1069
 #: qalculatesetbasedialog.cpp:37 qalculatesetbasedialog.cpp:50
 msgid "Decimal"
 msgstr "十进制"
 
-#: kqalculate.cpp:379 kqalculate.cpp:1035 qalculatesetbasedialog.cpp:38
+#: kqalculate.cpp:382 kqalculate.cpp:1038 qalculatesetbasedialog.cpp:38
 #: qalculatesetbasedialog.cpp:51
 msgid "Hexadecimal"
 msgstr "十六进制"
 
-#: kqalculate.cpp:380 kqalculate.cpp:1039 qalculatesetbasedialog.cpp:42
+#: kqalculate.cpp:383 kqalculate.cpp:1042 qalculatesetbasedialog.cpp:42
 msgid "Sexagesimal"
 msgstr "六十进制"
 
-#: kqalculate.cpp:381 kqalculate.cpp:1041
+#: kqalculate.cpp:384 kqalculate.cpp:1044
 msgid "Time Format"
 msgstr "日期格式"
 
-#: kqalculate.cpp:383 kqalculate.cpp:1037
+#: kqalculate.cpp:386 kqalculate.cpp:1040
 msgid "Other..."
 msgstr "其它..."
 
-#: kqalculate.cpp:389
+#: kqalculate.cpp:392
 msgid "f(x)"
 msgstr "f(x)"
 
-#: kqalculate.cpp:393
+#: kqalculate.cpp:396
 msgid "Open functions manager"
 msgstr "打开函数管理器"
 
-#: kqalculate.cpp:395
+#: kqalculate.cpp:398
 msgid "sqrt"
 msgstr "sqrt"
 
-#: kqalculate.cpp:396
+#: kqalculate.cpp:399
 msgid "Square root"
 msgstr "平方根"
 
-#: kqalculate.cpp:399 kqalculate.cpp:947
+#: kqalculate.cpp:402 kqalculate.cpp:950
 msgid "x<sup>y</sup>"
 msgstr "x<sup>y</sup>"
 
-#: kqalculate.cpp:400
+#: kqalculate.cpp:403
 msgid "Raise (Ctrl+*)"
 msgstr "上标(Ctrl+))"
 
-#: kqalculate.cpp:403 kqalculate.cpp:946
+#: kqalculate.cpp:406 kqalculate.cpp:949
 msgid "x<sup>2</sup>"
 msgstr "x<sup>2</sup>"
 
-#: kqalculate.cpp:404
+#: kqalculate.cpp:407
 msgid "Square"
 msgstr "平方"
 
-#: kqalculate.cpp:406
+#: kqalculate.cpp:409
 msgid "log"
 msgstr "log"
 
-#: kqalculate.cpp:407
+#: kqalculate.cpp:410
 msgid "Base-10 logarithm"
 msgstr "以10为底的对数"
 
-#: kqalculate.cpp:409
+#: kqalculate.cpp:412
 msgid "ln"
 msgstr "ln"
 
-#: kqalculate.cpp:410
+#: kqalculate.cpp:413
 msgid "Natural logarithm"
 msgstr "自然对数"
 
-#: kqalculate.cpp:412
+#: kqalculate.cpp:415
 msgid "x!"
 msgstr "x!"
 
-#: kqalculate.cpp:413
+#: kqalculate.cpp:416
 msgid "Factorial"
 msgstr "阶乘"
 
-#: kqalculate.cpp:415
+#: kqalculate.cpp:418
 msgid "cos"
 msgstr "cos"
 
-#: kqalculate.cpp:416
+#: kqalculate.cpp:419
 msgid "Cosine"
 msgstr "余弦"
 
-#: kqalculate.cpp:418
+#: kqalculate.cpp:421
 msgid "tan"
 msgstr "tan"
 
-#: kqalculate.cpp:419
+#: kqalculate.cpp:422
 msgid "Tangent"
 msgstr "正切"
 
-#: kqalculate.cpp:421
+#: kqalculate.cpp:424
 msgid "hyp"
 msgstr "hyp"
 
-#: kqalculate.cpp:422
+#: kqalculate.cpp:425
 msgid "Toggle hyperbolic functions"
 msgstr "切换双曲函数"
 
-#: kqalculate.cpp:425
+#: kqalculate.cpp:428
 msgid "inv"
 msgstr "inv"
 
-#: kqalculate.cpp:426
+#: kqalculate.cpp:429
 msgid "Toggle inverse functions"
 msgstr "切换反函数"
 
-#: kqalculate.cpp:429
+#: kqalculate.cpp:432
 msgid "sin"
 msgstr "sin"
 
-#: kqalculate.cpp:430
+#: kqalculate.cpp:433
 msgid "Sine"
 msgstr "正弦"
 
-#: kqalculate.cpp:435
+#: kqalculate.cpp:438
 msgid "Deg"
 msgstr "Deg"
 
-#: kqalculate.cpp:436
+#: kqalculate.cpp:439
 msgid "Angle Unit: Degrees"
 msgstr "角度单位：度"
 
-#: kqalculate.cpp:439
+#: kqalculate.cpp:442
 msgid "Rad"
 msgstr "Rad"
 
-#: kqalculate.cpp:440
+#: kqalculate.cpp:443
 msgid "Angle Unit: Radians"
 msgstr "角度单位：弧度"
 
-#: kqalculate.cpp:443
+#: kqalculate.cpp:446
 msgid "Gra"
 msgstr "Gra"
 
-#: kqalculate.cpp:444
+#: kqalculate.cpp:447
 msgid "Angle Unit: Gradians"
 msgstr "角度单位：梯度"
 
-#: kqalculate.cpp:447 kqalculate.cpp:1094 kqalculate.cpp:1152
-#: qalculateplotdialog.cpp:126
+#: kqalculate.cpp:450 kqalculate.cpp:1097 kqalculate.cpp:1155
+#: qalculateplotdialog.cpp:128
 msgid "None"
 msgstr "无"
 
-#: kqalculate.cpp:464
+#: kqalculate.cpp:467
 msgid "7"
 msgstr " 7"
 
-#: kqalculate.cpp:466
+#: kqalculate.cpp:469
 msgid "8"
 msgstr "8"
 
-#: kqalculate.cpp:468
+#: kqalculate.cpp:471
 msgid "9"
 msgstr "9"
 
-#: kqalculate.cpp:470
+#: kqalculate.cpp:473
 msgid "4"
 msgstr "4"
 
-#: kqalculate.cpp:472
+#: kqalculate.cpp:475
 msgid "5"
 msgstr "5"
 
-#: kqalculate.cpp:474
+#: kqalculate.cpp:477
 msgid "6"
 msgstr "6"
 
-#: kqalculate.cpp:476
+#: kqalculate.cpp:479
 msgid "1"
 msgstr "1"
 
-#: kqalculate.cpp:478
+#: kqalculate.cpp:481
 msgid "2"
 msgstr "2"
 
-#: kqalculate.cpp:480
+#: kqalculate.cpp:483
 msgid "3"
 msgstr "3"
 
-#: kqalculate.cpp:482
+#: kqalculate.cpp:485
 msgid "0"
 msgstr "0"
 
-#: kqalculate.cpp:485
+#: kqalculate.cpp:488
 msgid "Decimal point"
 msgstr "小数点"
 
-#: kqalculate.cpp:487
+#: kqalculate.cpp:490
 msgid "EXP"
 msgstr "EXP"
 
-#: kqalculate.cpp:488
+#: kqalculate.cpp:491
 msgid "10^x (Ctrl+Shift+E)"
 msgstr "10^x (Ctrl+Shift+E)"
 
-#: kqalculate.cpp:491
+#: kqalculate.cpp:494
 msgid "Del"
 msgstr "删除"
 
-#: kqalculate.cpp:494
+#: kqalculate.cpp:497
 msgid "AC"
 msgstr "AC"
 
-#: kqalculate.cpp:498
+#: kqalculate.cpp:501
 msgid "Multiply"
 msgstr "乘"
 
-#: kqalculate.cpp:501
+#: kqalculate.cpp:504
 msgid "Divide"
 msgstr "除"
 
-#: kqalculate.cpp:507
+#: kqalculate.cpp:510
 msgid "Subtract"
 msgstr "减"
 
-#: kqalculate.cpp:509
+#: kqalculate.cpp:512
 msgid "Ans"
 msgstr "Ans"
 
-#: kqalculate.cpp:510
+#: kqalculate.cpp:513
 msgid "Previous result"
 msgstr "前一个结果"
 
-#: kqalculate.cpp:512 kqalculate.cpp:4488
+#: kqalculate.cpp:515 kqalculate.cpp:4491
 msgid "Ent"
 msgstr "Ent"
 
-#: kqalculate.cpp:535
+#: kqalculate.cpp:538
 msgid "Index"
 msgstr "索引"
 
-#: kqalculate.cpp:536 qalculateeditdataobjectdialog.cpp:49
-#: qalculatevariablesdialog.cpp:61
+#: kqalculate.cpp:539 qalculateeditdataobjectdialog.cpp:50
+#: qalculatevariablesdialog.cpp:63
 msgid "Value"
 msgstr "值"
 
-#: kqalculate.cpp:555 kqalculate.cpp:5924
+#: kqalculate.cpp:558 kqalculate.cpp:5927
 msgid "Up"
 msgstr "上"
 
-#: kqalculate.cpp:556
+#: kqalculate.cpp:559
 msgid "Move selected register up"
 msgstr "向上移动选中的寄存器"
 
-#: kqalculate.cpp:560 kqalculate.cpp:5926
+#: kqalculate.cpp:563 kqalculate.cpp:5929
 msgid "Down"
 msgstr "下"
 
-#: kqalculate.cpp:561
+#: kqalculate.cpp:564
 msgid "Move selected register down"
 msgstr "向上移动选中的寄存器"
 
-#: kqalculate.cpp:566
+#: kqalculate.cpp:569
 msgid "Edit value of selected register"
 msgstr "编辑选中的寄存器里的值"
 
-#: kqalculate.cpp:571
+#: kqalculate.cpp:574
 msgid "Delete selected register"
 msgstr "删除选中的寄存器"
 
-#: kqalculate.cpp:576
+#: kqalculate.cpp:579
 msgid "Clear the RPN stack"
 msgstr "清空逆波兰范式栈"
 
-#: kqalculate.cpp:592
+#: kqalculate.cpp:595
 msgid "Keypad"
 msgstr "小键盘"
 
-#: kqalculate.cpp:593
+#: kqalculate.cpp:596
 msgid "Show/hide keypad"
 msgstr "显示/隐藏小键盘"
 
-#: kqalculate.cpp:596
+#: kqalculate.cpp:599
 msgid "History"
 msgstr "历史"
 
-#: kqalculate.cpp:597
+#: kqalculate.cpp:600
 msgid "Show/hide history"
 msgstr "显示/隐藏历史"
 
-#: kqalculate.cpp:600
+#: kqalculate.cpp:603
 msgid "RPN Stack"
 msgstr "逆波兰范式栈"
 
-#: kqalculate.cpp:601
+#: kqalculate.cpp:604
 msgid "Show/hide RPN stack"
 msgstr "显示/隐藏逆波兰范式栈"
 
-#: kqalculate.cpp:716 kqalculate.cpp:2527
+#: kqalculate.cpp:719 kqalculate.cpp:2530
 msgid "RPN Register Moved"
 msgstr "逆波兰范式寄存器已被移动"
 
-#: kqalculate.cpp:752 kqalculate.cpp:784 kqalculate.cpp:2138
-#: kqalculate.cpp:2702 kqalculate.cpp:2739
+#: kqalculate.cpp:755 kqalculate.cpp:787 kqalculate.cpp:2141
+#: kqalculate.cpp:2705 kqalculate.cpp:2742
 msgid "approx."
 msgstr "约"
 
-#: kqalculate.cpp:894 kqalculate.cpp:4813
+#: kqalculate.cpp:897 kqalculate.cpp:4816
 #, c-format
 msgid "Load meta mode: %1"
 msgstr "载入元模式：%1"
 
-#: kqalculate.cpp:966
+#: kqalculate.cpp:969
 msgid "Qalculate! - Scientific Calculator"
 msgstr "Qalculate! - 科学计算器"
 
-#: kqalculate.cpp:985 qalculateeditfunctiondialog.cpp:601
-#: qalculateresultdisplay.cpp:62
+#: kqalculate.cpp:988 qalculateeditfunctiondialog.cpp:602
+#: qalculateresultdisplay.cpp:63
 msgid "Variable"
 msgstr "变量"
 
-#: kqalculate.cpp:986 qalculateeditfunctiondialog.cpp:596
-#: qalculateeditmatrixvectordialog.cpp:106 qalculateimportcsvdialog.cpp:52
+#: kqalculate.cpp:989 qalculateeditfunctiondialog.cpp:597
+#: qalculateeditmatrixvectordialog.cpp:107 qalculateimportcsvdialog.cpp:53
 #: qalculateinsertmatrixvectordialog.cpp:85
 #: qalculateinsertmatrixvectordialog.cpp:310
 msgid "Matrix"
 msgstr "矩阵"
 
-#: kqalculate.cpp:987 qalculateeditfunctiondialog.cpp:595
-#: qalculateeditmatrixvectordialog.cpp:109
+#: kqalculate.cpp:990 qalculateeditfunctiondialog.cpp:596
+#: qalculateeditmatrixvectordialog.cpp:110
 #: qalculateinsertmatrixvectordialog.cpp:88
 #: qalculateinsertmatrixvectordialog.cpp:308
 msgid "Vector"
 msgstr "向量"
 
-#: kqalculate.cpp:988
+#: kqalculate.cpp:991
 msgid "Unknown Variable"
 msgstr "未知变量"
 
-#: kqalculate.cpp:989 qalculateeditdatasetdialog.cpp:70
-#: qalculateeditfunctiondialog.cpp:71 qalculateeditfunctiondialog.cpp:599
-#: qalculateplotdialog.cpp:98 qalculateresultdisplay.cpp:92
+#: kqalculate.cpp:992 qalculateeditdatasetdialog.cpp:71
+#: qalculateeditfunctiondialog.cpp:72 qalculateeditfunctiondialog.cpp:600
+#: qalculateplotdialog.cpp:100 qalculateresultdisplay.cpp:93
 msgid "Function"
 msgstr "函数"
 
-#: kqalculate.cpp:990 qalculatedatasetsdialog.cpp:64
+#: kqalculate.cpp:993 qalculatedatasetsdialog.cpp:64
 msgid "Data Set"
 msgstr "数据集"
 
-#: kqalculate.cpp:991 qalculateconvertunitsdialog.cpp:68
-#: qalculateeditfunctiondialog.cpp:600 qalculateresultdisplay.cpp:67
-#: qalculateunitsdialog.cpp:67
+#: kqalculate.cpp:994 qalculateconvertunitsdialog.cpp:70
+#: qalculateeditfunctiondialog.cpp:601 qalculateresultdisplay.cpp:68
+#: qalculateunitsdialog.cpp:69
 msgid "Unit"
 msgstr "单位"
 
-#: kqalculate.cpp:992
+#: kqalculate.cpp:995
 msgid "Import CSV File..."
 msgstr "导入CSV文件..."
 
-#: kqalculate.cpp:993
+#: kqalculate.cpp:996
 msgid "Export CSV File..."
 msgstr "导出CSV文件..."
 
-#: kqalculate.cpp:994
+#: kqalculate.cpp:997
 msgid "Store Result..."
 msgstr "保存结果..."
 
-#: kqalculate.cpp:995
+#: kqalculate.cpp:998
 msgid "Save Result Image..."
 msgstr "保存结果图像..."
 
-#: kqalculate.cpp:996
+#: kqalculate.cpp:999
 msgid "Save Definitions"
 msgstr "保存定义"
 
-#: kqalculate.cpp:997
+#: kqalculate.cpp:1000
 msgid "Update Exchange Rates"
 msgstr "更新汇率"
 
-#: kqalculate.cpp:998
+#: kqalculate.cpp:1001
 msgid "Plot Functions/Data"
 msgstr "绘制函数/数据图"
 
-#: kqalculate.cpp:1000
+#: kqalculate.cpp:1003
 msgid "Convert Number Bases"
 msgstr "转换数据进制"
 
-#: kqalculate.cpp:1001 qalculateperiodictabledialog.cpp:40
+#: kqalculate.cpp:1004 qalculateperiodictabledialog.cpp:40
 msgid "Periodic Table"
 msgstr "周期表"
 
-#: kqalculate.cpp:1008
+#: kqalculate.cpp:1011
 msgid "Show/hide main Qalculate! window"
 msgstr "显示/隐藏Qalculate!主窗口"
 
-#: kqalculate.cpp:1011
+#: kqalculate.cpp:1014
 msgid "Configure &Global Shortcuts..."
 msgstr "配置全局快捷方式(&G)..."
 
-#: kqalculate.cpp:1013
+#: kqalculate.cpp:1016
 msgid "Manage Variables"
 msgstr "管理变量"
 
-#: kqalculate.cpp:1014
+#: kqalculate.cpp:1017
 msgid "Manage Functions"
 msgstr "管理函数"
 
-#: kqalculate.cpp:1015
+#: kqalculate.cpp:1018
 msgid "Manage Units"
 msgstr "管理单位"
 
-#: kqalculate.cpp:1016
+#: kqalculate.cpp:1019
 msgid "Manage Data Sets"
 msgstr "管理数据集"
 
-#: kqalculate.cpp:1017 kqalculate.cpp:1150
+#: kqalculate.cpp:1020 kqalculate.cpp:1153
 msgid "Factorize"
 msgstr "因式分解"
 
-#: kqalculate.cpp:1018 kqalculate.cpp:1148
+#: kqalculate.cpp:1021 kqalculate.cpp:1151
 msgid "Simplify"
 msgstr "化简"
 
-#: kqalculate.cpp:1019
+#: kqalculate.cpp:1022
 msgid "Set Unknowns..."
 msgstr "设置未知数..."
 
-#: kqalculate.cpp:1020
+#: kqalculate.cpp:1023
 msgid "Convert to Unit Expression..."
 msgstr "转化成单位表达式..."
 
-#: kqalculate.cpp:1021 kqalculate.cpp:1084
+#: kqalculate.cpp:1024 kqalculate.cpp:1087
 msgid "Convert to Base Units"
 msgstr "转化成基本单位"
 
-#: kqalculate.cpp:1022 kqalculate.cpp:1086
+#: kqalculate.cpp:1025 kqalculate.cpp:1089
 msgid "Convert to Best Unit"
 msgstr "转化成最佳单位"
 
-#: kqalculate.cpp:1023
+#: kqalculate.cpp:1026
 msgid "Insert Matrix..."
 msgstr "插入矩阵..."
 
-#: kqalculate.cpp:1024
+#: kqalculate.cpp:1027
 msgid "Insert Vector..."
 msgstr "插入向量..."
 
-#: kqalculate.cpp:1025
+#: kqalculate.cpp:1028
 msgid "Copy Result"
 msgstr "拷贝结果"
 
-#: kqalculate.cpp:1026
+#: kqalculate.cpp:1029
 msgid "Clear History"
 msgstr "清空历史"
 
-#: kqalculate.cpp:1027
+#: kqalculate.cpp:1030
 msgid "Configure Qalculate!"
 msgstr "配置Qaclculate!"
 
-#: kqalculate.cpp:1043
+#: kqalculate.cpp:1046
 msgid "Roman Numerals"
 msgstr "罗马数字"
 
-#: kqalculate.cpp:1045
+#: kqalculate.cpp:1048
 msgid "Select Result and Expression Base..."
 msgstr "选择结果和表达式的进制..."
 
-#: kqalculate.cpp:1052
+#: kqalculate.cpp:1055
 msgid "Purely Scientific"
 msgstr "纯科学计算"
 
-#: kqalculate.cpp:1056
+#: kqalculate.cpp:1059
 msgid "Indicate Infinite Series"
 msgstr "指出无穷序列"
 
-#: kqalculate.cpp:1058
+#: kqalculate.cpp:1061
 msgid "Sort Minus Last"
 msgstr ""
 
-#: kqalculate.cpp:1060
+#: kqalculate.cpp:1063
 msgid "Negative Exponents"
 msgstr "负指数"
 
-#: kqalculate.cpp:1062
+#: kqalculate.cpp:1065
 msgid "Show Ending Zeroes"
 msgstr "显示结尾的零"
 
-#: kqalculate.cpp:1064
+#: kqalculate.cpp:1067
 msgid "Round Halfway Numbers to Even"
 msgstr ""
 
-#: kqalculate.cpp:1068
+#: kqalculate.cpp:1071
 msgid "Decimal (Try Exact)"
 msgstr "小数(尽量精确)"
 
-#: kqalculate.cpp:1072
+#: kqalculate.cpp:1075
 msgid "Combined"
 msgstr "带分数"
 
-#: kqalculate.cpp:1074
+#: kqalculate.cpp:1077
 msgid "Enable Prefixes"
 msgstr "启用前缀"
 
-#: kqalculate.cpp:1076
+#: kqalculate.cpp:1079
 msgid "Enable Use of All SI Prefixes"
 msgstr "启用使用全部国际单位制前缀"
 
-#: kqalculate.cpp:1078
+#: kqalculate.cpp:1081
 msgid "Enable Denominator Prefixes"
 msgstr "启用分母前缀"
 
-#: kqalculate.cpp:1080
+#: kqalculate.cpp:1083
 msgid "Place Units Separately"
 msgstr "将单位与表达式分开"
 
-#: kqalculate.cpp:1082
+#: kqalculate.cpp:1085
 msgid "No Automatic Conversion"
 msgstr "不自动换算"
 
-#: kqalculate.cpp:1088
+#: kqalculate.cpp:1091
 msgid "Degrees"
 msgstr "度"
 
-#: kqalculate.cpp:1090
+#: kqalculate.cpp:1093
 msgid "Radians"
 msgstr "弧度"
 
-#: kqalculate.cpp:1092
+#: kqalculate.cpp:1095
 msgid "Gradians"
 msgstr "梯度"
 
-#: kqalculate.cpp:1096
+#: kqalculate.cpp:1099
 msgid "Abbreviate Names"
 msgstr "使用缩写"
 
-#: kqalculate.cpp:1098
+#: kqalculate.cpp:1101
 msgid "Enable Variables"
 msgstr "启用变量"
 
-#: kqalculate.cpp:1100
+#: kqalculate.cpp:1103
 msgid "Enable Functions"
 msgstr "启用函数"
 
-#: kqalculate.cpp:1102
+#: kqalculate.cpp:1105
 msgid "Enable Units"
 msgstr "启用单位"
 
-#: kqalculate.cpp:1104
+#: kqalculate.cpp:1107
 msgid "Enable Unknowns"
 msgstr "启用未知数"
 
-#: kqalculate.cpp:1106
+#: kqalculate.cpp:1109
 msgid "Calculate Variables"
 msgstr "计算变量"
 
-#: kqalculate.cpp:1108
+#: kqalculate.cpp:1111
 msgid "Allow Complex Result"
 msgstr "允许复数结果"
 
-#: kqalculate.cpp:1110
+#: kqalculate.cpp:1113
 msgid "Allow Infinite Result"
 msgstr "允许无穷结果"
 
-#: kqalculate.cpp:1112
+#: kqalculate.cpp:1115
 msgid "Try Exact"
 msgstr "尝试精确"
 
-#: kqalculate.cpp:1114
+#: kqalculate.cpp:1117
 msgid "Always Exact"
 msgstr "总是精确"
 
-#: kqalculate.cpp:1116 qalculateeditdataobjectdialog.cpp:70
+#: kqalculate.cpp:1119 qalculateeditdataobjectdialog.cpp:71
 msgid "Approximate"
 msgstr "近似"
 
-#: kqalculate.cpp:1118 kqalculate.cpp:1132
-#: qalculateeditunknownvariabledialog.cpp:65
-#: qalculateeditunknownvariabledialog.cpp:78
+#: kqalculate.cpp:1121 kqalculate.cpp:1135
+#: qalculateeditunknownvariabledialog.cpp:66
+#: qalculateeditunknownvariabledialog.cpp:79
 #: qalculateperiodictabledialog.cpp:235
 msgid "Unknown"
 msgstr "未知"
 
-#: kqalculate.cpp:1120 qalculateeditunknownvariabledialog.cpp:66
+#: kqalculate.cpp:1123 qalculateeditunknownvariabledialog.cpp:67
 msgid "Not Matrix"
 msgstr "不是矩阵"
 
-#: kqalculate.cpp:1122 qalculateeditdatasetdialog.cpp:468
-#: qalculateeditfunctiondialog.cpp:590
-#: qalculateeditunknownvariabledialog.cpp:67
+#: kqalculate.cpp:1125 qalculateeditdatasetdialog.cpp:469
+#: qalculateeditfunctiondialog.cpp:591
+#: qalculateeditunknownvariabledialog.cpp:68
 msgid "Number"
 msgstr "数字"
 
-#: kqalculate.cpp:1124
+#: kqalculate.cpp:1127
 msgid "Complex"
 msgstr "复数"
 
-#: kqalculate.cpp:1126
+#: kqalculate.cpp:1129
 msgid "Real"
 msgstr "实数"
 
-#: kqalculate.cpp:1128
+#: kqalculate.cpp:1131
 msgid "Rational"
 msgstr "有理数"
 
-#: kqalculate.cpp:1130 qalculateeditfunctiondialog.cpp:591
-#: qalculateeditunknownvariabledialog.cpp:71
+#: kqalculate.cpp:1133 qalculateeditfunctiondialog.cpp:592
+#: qalculateeditunknownvariabledialog.cpp:72
 msgid "Integer"
 msgstr "整数"
 
-#: kqalculate.cpp:1134 qalculateeditunknownvariabledialog.cpp:83
+#: kqalculate.cpp:1137 qalculateeditunknownvariabledialog.cpp:84
 msgid "Non-Zero"
 msgstr "非零"
 
-#: kqalculate.cpp:1136 qalculateeditunknownvariabledialog.cpp:79
+#: kqalculate.cpp:1139 qalculateeditunknownvariabledialog.cpp:80
 msgid "Positive"
 msgstr "为正"
 
-#: kqalculate.cpp:1138 qalculateeditunknownvariabledialog.cpp:80
+#: kqalculate.cpp:1141 qalculateeditunknownvariabledialog.cpp:81
 msgid "Non-Negative"
 msgstr "非负"
 
-#: kqalculate.cpp:1140 qalculateeditunknownvariabledialog.cpp:81
+#: kqalculate.cpp:1143 qalculateeditunknownvariabledialog.cpp:82
 msgid "Negative"
 msgstr "为负"
 
-#: kqalculate.cpp:1142 qalculateeditunknownvariabledialog.cpp:82
+#: kqalculate.cpp:1145 qalculateeditunknownvariabledialog.cpp:83
 msgid "Non-Positive"
 msgstr "非正"
 
-#: kqalculate.cpp:1144
+#: kqalculate.cpp:1147
 msgid "Non-Zero Denominators"
 msgstr "非零分母"
 
-#: kqalculate.cpp:1146
+#: kqalculate.cpp:1149
 msgid "Warn About Denominators Assumed Non-Zero"
 msgstr "假设分母非零时警告"
 
-#: kqalculate.cpp:1154
+#: kqalculate.cpp:1157
 msgid "Read Precision"
 msgstr "读取精度"
 
-#: kqalculate.cpp:1156
+#: kqalculate.cpp:1159
 msgid "Limit Implicit Multiplication"
 msgstr "限制暗示乘法"
 
-#: kqalculate.cpp:1158
+#: kqalculate.cpp:1161
 msgid "RPN Mode"
 msgstr "逆波兰范式模式"
 
-#: kqalculate.cpp:1160
+#: kqalculate.cpp:1163
 msgid "RPN Syntax"
 msgstr "逆波兰语法"
 
-#: kqalculate.cpp:1162 qalculateprecisiondialog.cpp:31
+#: kqalculate.cpp:1165 qalculateprecisiondialog.cpp:31
 msgid "Precision"
 msgstr "精度"
 
-#: kqalculate.cpp:1163 qalculatedecimalsdialog.cpp:27
+#: kqalculate.cpp:1166 qalculatedecimalsdialog.cpp:27
 msgid "Decimals"
 msgstr "小数点"
 
-#: kqalculate.cpp:1164
+#: kqalculate.cpp:1167
 msgid "Save Mode..."
 msgstr "保存模式..."
 
-#: kqalculate.cpp:1165
+#: kqalculate.cpp:1168
 msgid "Delete Mode..."
 msgstr "删除模式..."
 
-#: kqalculate.cpp:1167
+#: kqalculate.cpp:1170
 msgid "Save Default Mode"
 msgstr "保存缺省模式"
 
-#: kqalculate.cpp:1168
+#: kqalculate.cpp:1171
 msgid "Clear Stack"
 msgstr "清空栈"
 
-#: kqalculate.cpp:1172
+#: kqalculate.cpp:1175
 msgid "Exp RPN Operation"
 msgstr ""
 
-#: kqalculate.cpp:1860
+#: kqalculate.cpp:1863
 msgid "and"
 msgstr "and"
 
-#: kqalculate.cpp:1865
+#: kqalculate.cpp:1868
 msgid "or"
 msgstr "or"
 
-#: kqalculate.cpp:2122
+#: kqalculate.cpp:2125
 msgid "undefined"
 msgstr "undefined"
 
-#: kqalculate.cpp:2164
+#: kqalculate.cpp:2167
 msgid "EXACT"
 msgstr "精确"
 
-#: kqalculate.cpp:2167
+#: kqalculate.cpp:2170
 msgid "APPROX"
 msgstr "近似"
 
-#: kqalculate.cpp:2171
+#: kqalculate.cpp:2174
 msgid "RPN"
 msgstr "逆波兰"
 
-#: kqalculate.cpp:2179
+#: kqalculate.cpp:2182
 msgid "BIN"
 msgstr "二进制"
 
-#: kqalculate.cpp:2184
+#: kqalculate.cpp:2187
 msgid "OCT"
 msgstr "八进制"
 
-#: kqalculate.cpp:2189
+#: kqalculate.cpp:2192
 msgid "HEX"
 msgstr "十六进制"
 
-#: kqalculate.cpp:2194
+#: kqalculate.cpp:2197
 msgid "ROMAN"
 msgstr "罗马数字"
 
-#: kqalculate.cpp:2206
+#: kqalculate.cpp:2209
 msgid "DEG"
 msgstr "度"
 
-#: kqalculate.cpp:2211
+#: kqalculate.cpp:2214
 msgid "RAD"
 msgstr "弧度"
 
-#: kqalculate.cpp:2216
+#: kqalculate.cpp:2219
 msgid "GRA"
 msgstr "梯度"
 
-#: kqalculate.cpp:2223
+#: kqalculate.cpp:2226
 msgid "PREC"
 msgstr "精度"
 
-#: kqalculate.cpp:2228
+#: kqalculate.cpp:2231
 msgid "FUNC"
 msgstr "函数"
 
-#: kqalculate.cpp:2234
+#: kqalculate.cpp:2237
 msgid "UNIT"
 msgstr "单位"
 
-#: kqalculate.cpp:2240
+#: kqalculate.cpp:2243
 msgid "VAR"
 msgstr "变量"
 
-#: kqalculate.cpp:2246
+#: kqalculate.cpp:2249
 msgid "INF"
 msgstr "无穷"
 
-#: kqalculate.cpp:2252
+#: kqalculate.cpp:2255
 msgid "CPLX"
 msgstr "复数"
 
-#: kqalculate.cpp:2333 kqalculate.cpp:2351 kqalculate.cpp:2581
+#: kqalculate.cpp:2336 kqalculate.cpp:2354 kqalculate.cpp:2584
 msgid "aborted"
 msgstr "已终止"
 
-#: kqalculate.cpp:2352
+#: kqalculate.cpp:2355
 msgid "calculation was aborted"
 msgstr "计算已被终止"
 
-#: kqalculate.cpp:2588
+#: kqalculate.cpp:2591
 msgid "result processing was aborted"
 msgstr "结果处理已被终止"
 
-#: kqalculate.cpp:2636
+#: kqalculate.cpp:2639
 msgid "Processing..."
 msgstr "正在处理..."
 
-#: kqalculate.cpp:2640 kqalculate.cpp:2885 kqalculate.cpp:3145
+#: kqalculate.cpp:2643 kqalculate.cpp:2888 kqalculate.cpp:3148
 msgid "Abort"
 msgstr "终止"
 
-#: kqalculate.cpp:2873
+#: kqalculate.cpp:2876
 msgid "Factorizing..."
 msgstr "正在因式分解..."
 
-#: kqalculate.cpp:2877
+#: kqalculate.cpp:2880
 msgid "Simplifying..."
 msgstr "正在化简..."
 
-#: kqalculate.cpp:3141
+#: kqalculate.cpp:3144
 msgid "Calculating..."
 msgstr "正在计算..."
 
-#: kqalculate.cpp:3191
+#: kqalculate.cpp:3194
 msgid "RPN Operation"
 msgstr "逆波兰范式操作"
 
-#: kqalculate.cpp:3259
+#: kqalculate.cpp:3262
 msgid "Errors"
 msgstr "错误"
 
-#: kqalculate.cpp:3260
+#: kqalculate.cpp:3263
 msgid "Warnings"
 msgstr "警告"
 
-#: kqalculate.cpp:3270
+#: kqalculate.cpp:3273
 msgid "Couldn't write definitions"
 msgstr "无法写定义"
 
-#: kqalculate.cpp:3538
+#: kqalculate.cpp:3541
 msgid "Prefixes"
 msgstr "前缀"
 
-#: kqalculate.cpp:3665
+#: kqalculate.cpp:3668
 msgid "No Prefix"
 msgstr "无前缀"
 
-#: kqalculate.cpp:3816 qalculatevariablesdialog.cpp:337
+#: kqalculate.cpp:3819 qalculatevariablesdialog.cpp:339
 msgid "Variable does not exist anymore."
 msgstr "变量不再存在。"
 
-#: kqalculate.cpp:3832 qalculateconvertunitsdialog.cpp:153
-#: qalculateunitsdialog.cpp:337
+#: kqalculate.cpp:3835 qalculateconvertunitsdialog.cpp:155
+#: qalculateunitsdialog.cpp:339
 msgid "Unit does not exist anymore."
 msgstr "单位不再存在。"
 
-#: kqalculate.cpp:3905
+#: kqalculate.cpp:3908
 msgid "Failed to download exchange rates from ECB."
 msgstr "从ECB下载汇率失败。"
 
-#: kqalculate.cpp:4752
+#: kqalculate.cpp:4755
 msgid "Save Mode"
 msgstr "保存模式"
 
-#: kqalculate.cpp:4755
+#: kqalculate.cpp:4758
 msgid "Mode name:"
 msgstr "模式名："
 
-#: kqalculate.cpp:4765
+#: kqalculate.cpp:4768
 msgid "Shortcut:"
 msgstr "快捷方式："
 
-#: kqalculate.cpp:4792
+#: kqalculate.cpp:4795
 msgid "Empty mode name."
 msgstr "空模式名。"
 
-#: kqalculate.cpp:4795
+#: kqalculate.cpp:4798
 msgid "Preset mode cannot be overwritten."
 msgstr "不能覆盖预定义模式。"
 
-#: kqalculate.cpp:4827
+#: kqalculate.cpp:4830
 msgid "Delete Mode"
 msgstr "删除模式"
 
-#: kqalculate.cpp:4827
+#: kqalculate.cpp:4830
 msgid "Mode:"
 msgstr "模式："
 
-#: kqalculate.cpp:5001
+#: kqalculate.cpp:5004
 msgid "log10 function not found."
 msgstr "未找到log10函数。"
 
-#: kqalculate.cpp:5545 main.cpp:156 main.cpp:159 main.cpp:160 main.cpp:161
-#: main.cpp:162
+#: kqalculate.cpp:5548 main.cpp:157 main.cpp:160 main.cpp:161 main.cpp:162
+#: main.cpp:163
 msgid "Temporary"
 msgstr "临时"
 
-#: kqalculate.cpp:5567 kqalculate.cpp:5594 qalculatefunctionsdialog.cpp:300
+#: kqalculate.cpp:5570 kqalculate.cpp:5597 qalculatefunctionsdialog.cpp:302
 msgid "Function does not exist anymore."
 msgstr "函数不再存在。"
 
-#: kqalculate.cpp:5697 kqalculate.cpp:5733
+#: kqalculate.cpp:5700 kqalculate.cpp:5736
 msgid "My Variables"
 msgstr "我的变量"
 
-#: kqalculate.cpp:5709 qalculateimportcsvdialog.cpp:56
+#: kqalculate.cpp:5712 qalculateimportcsvdialog.cpp:57
 msgid "Vectors"
 msgstr "向量"
 
-#: kqalculate.cpp:5721
+#: kqalculate.cpp:5724
 msgid "Matrices"
 msgstr "矩阵"
 
-#: kqalculate.cpp:5762 qalculateplotdialog.cpp:726
+#: kqalculate.cpp:5765 qalculateplotdialog.cpp:728
 msgid "Save Image"
 msgstr "保存图像"
 
-#: kqalculate.cpp:5767 qalculateplotdialog.cpp:731
+#: kqalculate.cpp:5770 qalculateplotdialog.cpp:733
 msgid ""
 "A file named \"%1\" already exists. Are you sure you want to overwrite it?"
 msgstr "文件\"%1\"已存在。您确定要覆盖它吗？"
 
-#: kqalculate.cpp:5767 qalculateplotdialog.cpp:731
+#: kqalculate.cpp:5770 qalculateplotdialog.cpp:733
 msgid "Overwrite File?"
 msgstr "覆盖文件？"
 
-#: kqalculate.cpp:5767 qalculateplotdialog.cpp:731
+#: kqalculate.cpp:5770 qalculateplotdialog.cpp:733
 msgid "&Overwrite"
 msgstr "覆盖(&O)"
 
-#: kqalculate.cpp:5801
+#: kqalculate.cpp:5804
 msgid "Failed to save image."
 msgstr "保存问图像失败。"
 
-#: kqalculate.cpp:6027
+#: kqalculate.cpp:6030
 msgid "No unknowns in result."
 msgstr "在结果中不存在未知数。"
 
-#: kqalculate.cpp:6030
+#: kqalculate.cpp:6033
 msgid "Set Unknowns"
 msgstr "设置未知数。"
 
-#: kqalculate.cpp:6194
+#: kqalculate.cpp:6197
 msgid "Too many arguments for %1()."
 msgstr "%1()的参数过多。"
 
-#: kqalculate.cpp:6220 qalculatedatasetsdialog.cpp:342
-#: qalculatefunctionsdialog.cpp:343 qalculateresultdisplay.cpp:120
+#: kqalculate.cpp:6223 qalculatedatasetsdialog.cpp:342
+#: qalculatefunctionsdialog.cpp:345 qalculateresultdisplay.cpp:121
 msgid "argument"
 msgstr "参数"
 
-#: kqalculate.cpp:6442 kqalculate.cpp:6446
+#: kqalculate.cpp:6445 kqalculate.cpp:6449
 msgid "Edit Expression"
 msgstr "编辑表达式"
 
-#: kqalculate.cpp:6451
+#: kqalculate.cpp:6454
 msgid "Edit Result"
 msgstr "编辑结果"
 
-#: kqalculate.cpp:6454
+#: kqalculate.cpp:6457
 msgid "Insert Result Variable"
 msgstr "插入结果变量"
 
-#: main.cpp:45
+#: main.cpp:46
 msgid "A powerful and easy to use desktop calculator"
 msgstr "一个强大而且易用的桌面计算器"
 
-#: main.cpp:51
+#: main.cpp:52
 msgid "Calculate X11-clipboard content (selected text)"
 msgstr "计算X11剪贴板里的内容(选中的文本)"
 
-#: main.cpp:52
+#: main.cpp:53
 msgid "Initial expression to calculate"
 msgstr "初始化表达式进行计算"
 
-#: main.cpp:134
+#: main.cpp:135
 msgid "Enter a mathematical expression above.<br>Ex. 5 + 2 / 3"
 msgstr ""
 "在上面输入一个数学表达式。\n"
 "例如，5 + 2 / 3"
 
-#: main.cpp:143
+#: main.cpp:144
 msgid ""
 "You need to download exchange rates to be able to convert between different "
 "currencies. You can later get current exchange rates by selecting \"Update "
@@ -1090,51 +1090,51 @@ msgstr ""
 "\n"
 "现在是否从因特网下载汇率？"
 
-#: main.cpp:143
+#: main.cpp:144
 msgid "Update exchange rates?"
 msgstr "更新汇率？"
 
-#: main.cpp:155
+#: main.cpp:156
 msgid "ans"
 msgstr "ans"
 
-#: main.cpp:156
+#: main.cpp:157
 msgid "Last Answer"
 msgstr "最后一个答案"
 
-#: main.cpp:157
+#: main.cpp:158
 msgid "answer"
 msgstr "答案"
 
-#: main.cpp:159
+#: main.cpp:160
 msgid "Answer 2"
 msgstr "答案2"
 
-#: main.cpp:160
+#: main.cpp:161
 msgid "Answer 3"
 msgstr "答案3"
 
-#: main.cpp:161
+#: main.cpp:162
 msgid "Answer 4"
 msgstr "答案4"
 
-#: main.cpp:162
+#: main.cpp:163
 msgid "Answer 5"
 msgstr "答案5"
 
-#: main.cpp:166
+#: main.cpp:167
 msgid "Failed to load global definitions!"
 msgstr "载入全局定义失败！"
 
-#: main.cpp:290
+#: main.cpp:291
 msgid "Qalculate!"
 msgstr "Qalculate!"
 
-#: preferences.cpp:208
+#: preferences.cpp:210
 msgid "Preset"
 msgstr "预设参数"
 
-#: preferences.cpp:669
+#: preferences.cpp:671
 #, c-format
 msgid ""
 "Couldn't write preferences to\n"
@@ -1143,67 +1143,67 @@ msgstr ""
 "无法将偏好设置写入\n"
 "%s"
 
-#: qalculateconvertnumberbasesdialog.cpp:31 qalculatesetbasedialog.cpp:29
+#: qalculateconvertnumberbasesdialog.cpp:32 qalculatesetbasedialog.cpp:29
 msgid "Number Bases"
 msgstr "数字进制"
 
-#: qalculateconvertnumberbasesdialog.cpp:37
+#: qalculateconvertnumberbasesdialog.cpp:38
 msgid "Decimal:"
 msgstr "十进制："
 
-#: qalculateconvertnumberbasesdialog.cpp:41
+#: qalculateconvertnumberbasesdialog.cpp:42
 msgid "Binary:"
 msgstr "二进制："
 
-#: qalculateconvertnumberbasesdialog.cpp:45
+#: qalculateconvertnumberbasesdialog.cpp:46
 msgid "Octal:"
 msgstr "八进制："
 
-#: qalculateconvertnumberbasesdialog.cpp:49
+#: qalculateconvertnumberbasesdialog.cpp:50
 msgid "Hexadecimal:"
 msgstr "十六进制："
 
-#: qalculateconvertunitsdialog.cpp:44
+#: qalculateconvertunitsdialog.cpp:46
 msgid "Selector"
 msgstr "选择器"
 
-#: qalculateconvertunitsdialog.cpp:50 qalculateeditdatasetdialog.cpp:482
+#: qalculateconvertunitsdialog.cpp:52 qalculateeditdatasetdialog.cpp:483
 msgid "Unit expression:"
 msgstr "单位表达式："
 
-#: qalculateconvertunitsdialog.cpp:63 qalculatefunctionsdialog.cpp:55
-#: qalculateunitsdialog.cpp:63 qalculatevariablesdialog.cpp:57
+#: qalculateconvertunitsdialog.cpp:65 qalculatefunctionsdialog.cpp:57
+#: qalculateunitsdialog.cpp:65 qalculatevariablesdialog.cpp:59
 msgid "Category"
 msgstr "分类"
 
-#: qalculateconvertunitsdialog.cpp:85 qalculateconvertunitsdialog.cpp:86
-#: qalculateconvertunitsdialog.cpp:141 qalculateconvertunitsdialog.cpp:180
-#: qalculatefunctionsdialog.cpp:118 qalculatefunctionsdialog.cpp:119
-#: qalculatefunctionsdialog.cpp:183 qalculatefunctionsdialog.cpp:505
-#: qalculateunitsdialog.cpp:150 qalculateunitsdialog.cpp:151
-#: qalculateunitsdialog.cpp:215 qalculateunitsdialog.cpp:416
-#: qalculatevariablesdialog.cpp:116 qalculatevariablesdialog.cpp:117
-#: qalculatevariablesdialog.cpp:183 qalculatevariablesdialog.cpp:462
+#: qalculateconvertunitsdialog.cpp:87 qalculateconvertunitsdialog.cpp:88
+#: qalculateconvertunitsdialog.cpp:143 qalculateconvertunitsdialog.cpp:182
+#: qalculatefunctionsdialog.cpp:120 qalculatefunctionsdialog.cpp:121
+#: qalculatefunctionsdialog.cpp:185 qalculatefunctionsdialog.cpp:507
+#: qalculateunitsdialog.cpp:152 qalculateunitsdialog.cpp:153
+#: qalculateunitsdialog.cpp:217 qalculateunitsdialog.cpp:418
+#: qalculatevariablesdialog.cpp:118 qalculatevariablesdialog.cpp:119
+#: qalculatevariablesdialog.cpp:185 qalculatevariablesdialog.cpp:464
 msgid "All"
 msgstr "全部"
 
-#: qalculateconvertunitsdialog.cpp:132 qalculateconvertunitsdialog.cpp:133
-#: qalculateconvertunitsdialog.cpp:134 qalculateconvertunitsdialog.cpp:182
-#: qalculatefunctionsdialog.cpp:165 qalculatefunctionsdialog.cpp:166
-#: qalculatefunctionsdialog.cpp:167 qalculatefunctionsdialog.cpp:236
-#: qalculatefunctionsdialog.cpp:262 qalculatefunctionsdialog.cpp:285
-#: qalculatefunctionsdialog.cpp:507 qalculateunitsdialog.cpp:197
-#: qalculateunitsdialog.cpp:198 qalculateunitsdialog.cpp:199
-#: qalculateunitsdialog.cpp:273 qalculateunitsdialog.cpp:299
-#: qalculateunitsdialog.cpp:322 qalculateunitsdialog.cpp:418
-#: qalculatevariablesdialog.cpp:165 qalculatevariablesdialog.cpp:166
-#: qalculatevariablesdialog.cpp:167 qalculatevariablesdialog.cpp:258
-#: qalculatevariablesdialog.cpp:284 qalculatevariablesdialog.cpp:322
-#: qalculatevariablesdialog.cpp:464
+#: qalculateconvertunitsdialog.cpp:134 qalculateconvertunitsdialog.cpp:135
+#: qalculateconvertunitsdialog.cpp:136 qalculateconvertunitsdialog.cpp:184
+#: qalculatefunctionsdialog.cpp:167 qalculatefunctionsdialog.cpp:168
+#: qalculatefunctionsdialog.cpp:169 qalculatefunctionsdialog.cpp:238
+#: qalculatefunctionsdialog.cpp:264 qalculatefunctionsdialog.cpp:287
+#: qalculatefunctionsdialog.cpp:509 qalculateunitsdialog.cpp:199
+#: qalculateunitsdialog.cpp:200 qalculateunitsdialog.cpp:201
+#: qalculateunitsdialog.cpp:275 qalculateunitsdialog.cpp:301
+#: qalculateunitsdialog.cpp:324 qalculateunitsdialog.cpp:420
+#: qalculatevariablesdialog.cpp:167 qalculatevariablesdialog.cpp:168
+#: qalculatevariablesdialog.cpp:169 qalculatevariablesdialog.cpp:260
+#: qalculatevariablesdialog.cpp:286 qalculatevariablesdialog.cpp:324
+#: qalculatevariablesdialog.cpp:466
 msgid "Uncategorized"
 msgstr "未分类"
 
-#: qalculatedatasetsdialog.cpp:46 qalculateeditdatasetdialog.cpp:232
+#: qalculatedatasetsdialog.cpp:46 qalculateeditdatasetdialog.cpp:233
 msgid "Data Sets"
 msgstr "数据集"
 
@@ -1212,15 +1212,15 @@ msgid "Data Sets:"
 msgstr "数据集："
 
 #: qalculatedatasetsdialog.cpp:68 qalculatedatasetsdialog.cpp:91
-#: qalculateeditdatasetdialog.cpp:107 qalculateeditdatasetdialog.cpp:629
-#: qalculateeditfunctiondialog.cpp:133 qalculateeditfunctiondialog.cpp:492
-#: qalculateeditnamesdialog.cpp:64 qalculatefunctionsdialog.cpp:67
-#: qalculateunitsdialog.cpp:91 qalculatevariablesdialog.cpp:66
+#: qalculateeditdatasetdialog.cpp:108 qalculateeditdatasetdialog.cpp:630
+#: qalculateeditfunctiondialog.cpp:134 qalculateeditfunctiondialog.cpp:493
+#: qalculateeditnamesdialog.cpp:64 qalculatefunctionsdialog.cpp:69
+#: qalculateunitsdialog.cpp:93 qalculatevariablesdialog.cpp:68
 msgid "New"
 msgstr "新建"
 
-#: qalculatedatasetsdialog.cpp:77 qalculateeditdatasetdialog.cpp:79
-#: qalculateeditdatasetdialog.cpp:456 qalculateeditfunctiondialog.cpp:98
+#: qalculatedatasetsdialog.cpp:77 qalculateeditdatasetdialog.cpp:80
+#: qalculateeditdatasetdialog.cpp:457 qalculateeditfunctiondialog.cpp:99
 msgid "Description:"
 msgstr "描述："
 
@@ -1228,8 +1228,8 @@ msgstr "描述："
 msgid "Objects:"
 msgstr "对象："
 
-#: qalculatedatasetsdialog.cpp:87 qalculateeditdatasetdialog.cpp:236
-#: qalculateeditfunctiondialog.cpp:598
+#: qalculatedatasetsdialog.cpp:87 qalculateeditdatasetdialog.cpp:237
+#: qalculateeditfunctiondialog.cpp:599
 msgid "Object"
 msgstr "对象"
 
@@ -1241,8 +1241,8 @@ msgstr "属性："
 msgid "Data set does not exist anymore."
 msgstr "数据集不再存在。"
 
-#: qalculatedatasetsdialog.cpp:300 qalculateeditdatasetdialog.cpp:195
-#: qalculatefunctionsdialog.cpp:456
+#: qalculatedatasetsdialog.cpp:300 qalculateeditdatasetdialog.cpp:196
+#: qalculatefunctionsdialog.cpp:458
 msgid "key"
 msgstr "关键字"
 
@@ -1258,116 +1258,116 @@ msgstr "最大精度位数:"
 msgid "Min decimals:"
 msgstr "最小精度位数:"
 
-#: qalculateeditdataobjectdialog.cpp:30 qalculateeditdataobjectdialog.cpp:40
+#: qalculateeditdataobjectdialog.cpp:31 qalculateeditdataobjectdialog.cpp:41
 msgid "Edit Object"
 msgstr "编辑对象"
 
-#: qalculateeditdataobjectdialog.cpp:42
+#: qalculateeditdataobjectdialog.cpp:43
 msgid "New Object"
 msgstr "新对象"
 
-#: qalculateeditdataobjectdialog.cpp:48 qalculateeditdatasetdialog.cpp:242
+#: qalculateeditdataobjectdialog.cpp:49 qalculateeditdatasetdialog.cpp:243
 msgid "Property"
 msgstr "属性"
 
-#: qalculate_tdeui.rc:116 qalculateeditdataobjectdialog.cpp:51
+#: qalculate_tdeui.rc:116 qalculateeditdataobjectdialog.cpp:52
 #, no-c-format
 msgid "Approximation"
 msgstr "近似"
 
-#: qalculateeditdatasetdialog.cpp:53 qalculateeditdatasetdialog.cpp:307
+#: qalculateeditdatasetdialog.cpp:54 qalculateeditdatasetdialog.cpp:308
 msgid "Edit Data Set"
 msgstr "编辑数据集"
 
-#: qalculateeditdatasetdialog.cpp:68 qalculateeditfunctiondialog.cpp:70
+#: qalculateeditdatasetdialog.cpp:69 qalculateeditfunctiondialog.cpp:71
 #: qalculatepreferencesdialog.cpp:157
 msgid "General"
 msgstr "常规"
 
-#: qalculateeditdatasetdialog.cpp:73 qalculateplotdialog.cpp:86
-#: qalculateplotdialog.cpp:189
+#: qalculateeditdatasetdialog.cpp:74 qalculateplotdialog.cpp:88
+#: qalculateplotdialog.cpp:191
 msgid "Title:"
 msgstr "标题："
 
-#: qalculateeditdatasetdialog.cpp:76
+#: qalculateeditdatasetdialog.cpp:77
 msgid "Data file:"
 msgstr "数据文件："
 
-#: qalculateeditdatasetdialog.cpp:87
+#: qalculateeditdatasetdialog.cpp:88
 msgid "Copyright:"
 msgstr "版权："
 
-#: qalculateeditdatasetdialog.cpp:97
+#: qalculateeditdatasetdialog.cpp:98
 msgid "Properties:"
 msgstr "属性："
 
-#: qalculateeditdatasetdialog.cpp:99 qalculateplotdialog.cpp:153
+#: qalculateeditdatasetdialog.cpp:100 qalculateplotdialog.cpp:155
 msgid "Title"
 msgstr "标题"
 
-#: qalculateeditdatasetdialog.cpp:100 qalculateeditdatasetdialog.cpp:620
-#: qalculateeditfunctiondialog.cpp:124 qalculateeditnamesdialog.cpp:41
-#: qalculateeditunitdialog.cpp:50
+#: qalculateeditdatasetdialog.cpp:101 qalculateeditdatasetdialog.cpp:621
+#: qalculateeditfunctiondialog.cpp:125 qalculateeditnamesdialog.cpp:41
+#: qalculateeditunitdialog.cpp:51
 msgid "Name"
 msgstr "名称"
 
-#: qalculateeditdatasetdialog.cpp:101 qalculateeditfunctiondialog.cpp:125
-#: qalculateeditunitdialog.cpp:75 qalculateeditunknownvariabledialog.cpp:60
+#: qalculateeditdatasetdialog.cpp:102 qalculateeditfunctiondialog.cpp:126
+#: qalculateeditunitdialog.cpp:76 qalculateeditunknownvariabledialog.cpp:61
 msgid "Type"
 msgstr "类别"
 
-#: qalculateeditdatasetdialog.cpp:115 qalculateeditdatasetdialog.cpp:442
-#: qalculateeditfunctiondialog.cpp:74 qalculateeditfunctiondialog.cpp:583
-#: qalculateeditmatrixvectordialog.cpp:78 qalculateeditunitdialog.cpp:55
-#: qalculateeditunknownvariabledialog.cpp:47 qalculateeditvariabledialog.cpp:49
-#: qalculateimportcsvdialog.cpp:60
+#: qalculateeditdatasetdialog.cpp:116 qalculateeditdatasetdialog.cpp:443
+#: qalculateeditfunctiondialog.cpp:75 qalculateeditfunctiondialog.cpp:584
+#: qalculateeditmatrixvectordialog.cpp:79 qalculateeditunitdialog.cpp:56
+#: qalculateeditunknownvariabledialog.cpp:48 qalculateeditvariabledialog.cpp:50
+#: qalculateimportcsvdialog.cpp:61
 msgid "Name:"
 msgstr "名称："
 
-#: qalculateeditdatasetdialog.cpp:124 qalculateeditdatasetdialog.cpp:451
-#: qalculateeditfunctiondialog.cpp:83 qalculateeditmatrixvectordialog.cpp:87
-#: qalculateeditunitdialog.cpp:64 qalculateeditunknownvariabledialog.cpp:56
-#: qalculateeditvariabledialog.cpp:60
+#: qalculateeditdatasetdialog.cpp:125 qalculateeditdatasetdialog.cpp:452
+#: qalculateeditfunctiondialog.cpp:84 qalculateeditmatrixvectordialog.cpp:88
+#: qalculateeditunitdialog.cpp:65 qalculateeditunknownvariabledialog.cpp:57
+#: qalculateeditvariabledialog.cpp:61
 msgid "Names Details"
 msgstr "名称详细信息"
 
-#: qalculateeditdatasetdialog.cpp:126
+#: qalculateeditdatasetdialog.cpp:127
 msgid "Object argument name:"
 msgstr "对象参数名:"
 
-#: qalculateeditdatasetdialog.cpp:129
+#: qalculateeditdatasetdialog.cpp:130
 msgid "Property argument name:"
 msgstr "属性参数名:"
 
-#: qalculateeditdatasetdialog.cpp:132
+#: qalculateeditdatasetdialog.cpp:133
 msgid "Default property:"
 msgstr "缺省属性:"
 
-#: qalculateeditdatasetdialog.cpp:173
+#: qalculateeditdatasetdialog.cpp:174
 msgid "text"
 msgstr "文字"
 
-#: qalculateeditdatasetdialog.cpp:178 qalculateeditdatasetdialog.cpp:186
+#: qalculateeditdatasetdialog.cpp:179 qalculateeditdatasetdialog.cpp:187
 msgid "approximate"
 msgstr "近似"
 
-#: qalculateeditdatasetdialog.cpp:181 qalculateexpressionedit.cpp:712
-#: qalculatevariablesdialog.cpp:428
+#: qalculateeditdatasetdialog.cpp:182 qalculateexpressionedit.cpp:714
+#: qalculatevariablesdialog.cpp:430
 msgid "number"
 msgstr "数字"
 
-#: qalculateeditdatasetdialog.cpp:189
+#: qalculateeditdatasetdialog.cpp:190
 msgid "expression"
 msgstr "表达式"
 
-#: qalculateeditdatasetdialog.cpp:213 qalculateeditdatasetdialog.cpp:499
-#: qalculateeditfunctiondialog.cpp:190 qalculateeditmatrixvectordialog.cpp:185
-#: qalculateeditunitdialog.cpp:146 qalculateeditunknownvariabledialog.cpp:132
-#: qalculateeditvariabledialog.cpp:102
+#: qalculateeditdatasetdialog.cpp:214 qalculateeditdatasetdialog.cpp:500
+#: qalculateeditfunctiondialog.cpp:191 qalculateeditmatrixvectordialog.cpp:186
+#: qalculateeditunitdialog.cpp:147 qalculateeditunknownvariabledialog.cpp:133
+#: qalculateeditvariabledialog.cpp:103
 msgid "Empty name field"
 msgstr "空白名称域"
 
-#: qalculateeditdatasetdialog.cpp:217 qalculateeditfunctiondialog.cpp:201
+#: qalculateeditdatasetdialog.cpp:218 qalculateeditfunctiondialog.cpp:202
 msgid ""
 "A function with the same name already exists.\n"
 "Do you want to overwrite it?"
@@ -1375,216 +1375,216 @@ msgstr ""
 "同名函数已存在。\n"
 "您想要覆盖它吗？"
 
-#: qalculateeditdatasetdialog.cpp:309
+#: qalculateeditdatasetdialog.cpp:310
 msgid "Edit Data Set (global)"
 msgstr "编辑(全局)数据集"
 
-#: qalculateeditdatasetdialog.cpp:311
+#: qalculateeditdatasetdialog.cpp:312
 msgid "New Data Set"
 msgstr "新数据集"
 
-#: qalculateeditdatasetdialog.cpp:322
+#: qalculateeditdatasetdialog.cpp:323
 msgid "info"
 msgstr "信息"
 
-#: qalculateeditdatasetdialog.cpp:435 qalculateeditdatasetdialog.cpp:548
+#: qalculateeditdatasetdialog.cpp:436 qalculateeditdatasetdialog.cpp:549
 msgid "Edit Property"
 msgstr "编辑属性"
 
-#: qalculateeditdatasetdialog.cpp:453 qalculateeditfunctiondialog.cpp:90
-#: qalculateeditmatrixvectordialog.cpp:93 qalculateeditunitdialog.cpp:66
-#: qalculateeditunknownvariabledialog.cpp:90 qalculateeditvariabledialog.cpp:80
-#: qalculateimportcsvdialog.cpp:63
+#: qalculateeditdatasetdialog.cpp:454 qalculateeditfunctiondialog.cpp:91
+#: qalculateeditmatrixvectordialog.cpp:94 qalculateeditunitdialog.cpp:67
+#: qalculateeditunknownvariabledialog.cpp:91 qalculateeditvariabledialog.cpp:81
+#: qalculateimportcsvdialog.cpp:64
 msgid "Descriptive name:"
 msgstr "描述性名称:"
 
-#: qalculateeditdatasetdialog.cpp:464
+#: qalculateeditdatasetdialog.cpp:465
 msgid "Value type:"
 msgstr "值类型:"
 
-#: qalculateeditdatasetdialog.cpp:467 qalculateeditfunctiondialog.cpp:593
+#: qalculateeditdatasetdialog.cpp:468 qalculateeditfunctiondialog.cpp:594
 msgid "Text"
 msgstr "文字"
 
-#: qalculateeditdatasetdialog.cpp:469 qalculateeditfunctiondialog.cpp:482
-#: qalculateplotdialog.cpp:154
+#: qalculateeditdatasetdialog.cpp:470 qalculateeditfunctiondialog.cpp:483
+#: qalculateplotdialog.cpp:156
 msgid "Expression"
 msgstr "表达式"
 
-#: qalculateeditdatasetdialog.cpp:474
+#: qalculateeditdatasetdialog.cpp:475
 msgid "Use as key"
 msgstr "用作关键字"
 
-#: qalculateeditdatasetdialog.cpp:476
+#: qalculateeditdatasetdialog.cpp:477
 msgid "Approximate value"
 msgstr "近似值"
 
-#: qalculateeditdatasetdialog.cpp:478
+#: qalculateeditdatasetdialog.cpp:479
 msgid "Case sensitive value"
 msgstr "大小写敏感值"
 
-#: qalculateeditdatasetdialog.cpp:480
+#: qalculateeditdatasetdialog.cpp:481
 msgid "Value uses brackets"
 msgstr "在值中使用方括号"
 
-#: qalculateeditdatasetdialog.cpp:550
+#: qalculateeditdatasetdialog.cpp:551
 msgid "New Property"
 msgstr "新建属性"
 
-#: qalculateeditdatasetdialog.cpp:615 qalculateeditnamesdialog.cpp:34
+#: qalculateeditdatasetdialog.cpp:616 qalculateeditnamesdialog.cpp:34
 msgid "Edit Names"
 msgstr "编辑名称"
 
-#: qalculateeditdatasetdialog.cpp:621 qalculateeditfunctiondialog.cpp:481
+#: qalculateeditdatasetdialog.cpp:622 qalculateeditfunctiondialog.cpp:482
 #: qalculateeditnamesdialog.cpp:46
 msgid "Reference"
 msgstr "引用"
 
-#: qalculateeditfunctiondialog.cpp:55 qalculateeditfunctiondialog.cpp:286
+#: qalculateeditfunctiondialog.cpp:56 qalculateeditfunctiondialog.cpp:287
 msgid "Edit Function"
 msgstr "编辑函数"
 
-#: qalculateeditfunctiondialog.cpp:85 qalculateeditmatrixvectordialog.cpp:89
-#: qalculateeditunitdialog.cpp:87 qalculateeditunknownvariabledialog.cpp:85
-#: qalculateeditvariabledialog.cpp:74 qalculateimportcsvdialog.cpp:66
+#: qalculateeditfunctiondialog.cpp:86 qalculateeditmatrixvectordialog.cpp:90
+#: qalculateeditunitdialog.cpp:88 qalculateeditunknownvariabledialog.cpp:86
+#: qalculateeditvariabledialog.cpp:75 qalculateimportcsvdialog.cpp:67
 msgid "Category:"
 msgstr "类别："
 
-#: qalculateeditfunctiondialog.cpp:96
+#: qalculateeditfunctiondialog.cpp:97
 msgid "Hide function"
 msgstr "隐藏函数"
 
-#: qalculateeditfunctiondialog.cpp:106 qalculateplotdialog.cpp:89
+#: qalculateeditfunctiondialog.cpp:107 qalculateplotdialog.cpp:91
 msgid "Expression:"
 msgstr "表达式："
 
-#: qalculateeditfunctiondialog.cpp:115
+#: qalculateeditfunctiondialog.cpp:116
 msgid "Condition:"
 msgstr "条件："
 
-#: qalculateeditfunctiondialog.cpp:120 qalculateeditfunctiondialog.cpp:476
+#: qalculateeditfunctiondialog.cpp:121 qalculateeditfunctiondialog.cpp:477
 msgid "Sub-Functions"
 msgstr "子函数"
 
-#: qalculateeditfunctiondialog.cpp:122
+#: qalculateeditfunctiondialog.cpp:123
 msgid "Arguments:"
 msgstr "自变量："
 
-#: qalculateeditfunctiondialog.cpp:197
+#: qalculateeditfunctiondialog.cpp:198
 msgid "Empty expression field"
 msgstr "空白表达式项"
 
-#: qalculateeditfunctiondialog.cpp:288
+#: qalculateeditfunctiondialog.cpp:289
 msgid "Edit Function (global)"
 msgstr "编辑(全局)函数"
 
-#: qalculateeditfunctiondialog.cpp:290
+#: qalculateeditfunctiondialog.cpp:291
 msgid "New Function"
 msgstr "新建函数"
 
-#: qalculateeditfunctiondialog.cpp:483
+#: qalculateeditfunctiondialog.cpp:484
 msgid "Precalculate"
 msgstr "预计算"
 
-#: qalculateeditfunctiondialog.cpp:579 qalculateeditfunctiondialog.cpp:675
+#: qalculateeditfunctiondialog.cpp:580 qalculateeditfunctiondialog.cpp:676
 msgid "Edit Argument"
 msgstr "编辑自变量"
 
-#: qalculateeditfunctiondialog.cpp:586
+#: qalculateeditfunctiondialog.cpp:587
 msgid "Type:"
 msgstr "类型："
 
-#: qalculateeditfunctiondialog.cpp:589
+#: qalculateeditfunctiondialog.cpp:590
 msgid "Free"
 msgstr "自由变量"
 
-#: qalculateeditfunctiondialog.cpp:592
+#: qalculateeditfunctiondialog.cpp:593
 msgid "Symbol"
 msgstr "符号"
 
-#: qalculateeditfunctiondialog.cpp:594 qalculateinsertfunctiondialog.cpp:353
+#: qalculateeditfunctiondialog.cpp:595 qalculateinsertfunctiondialog.cpp:353
 msgid "Date"
 msgstr "日期"
 
-#: qalculateeditfunctiondialog.cpp:597
+#: qalculateeditfunctiondialog.cpp:598
 msgid "Boolean"
 msgstr "逻辑型"
 
-#: qalculateeditfunctiondialog.cpp:603
+#: qalculateeditfunctiondialog.cpp:604
 msgid "Angle"
 msgstr "角度"
 
-#: qalculateeditfunctiondialog.cpp:605
+#: qalculateeditfunctiondialog.cpp:606
 msgid "Enable rules and type test"
 msgstr "启用规则和类型测试"
 
-#: qalculateeditfunctiondialog.cpp:607
+#: qalculateeditfunctiondialog.cpp:608
 msgid "Custom condition:"
 msgstr "自定义条件："
 
-#: qalculateeditfunctiondialog.cpp:611
+#: qalculateeditfunctiondialog.cpp:612
 msgid "Allow matrix"
 msgstr "允许矩阵"
 
-#: qalculateeditfunctiondialog.cpp:613
+#: qalculateeditfunctiondialog.cpp:614
 msgid "Forbid zero"
 msgstr "禁止出现零"
 
-#: qalculateeditfunctiondialog.cpp:615
+#: qalculateeditfunctiondialog.cpp:616
 msgid "Allow complex"
 msgstr "允许复数"
 
-#: qalculateeditfunctiondialog.cpp:617 qalculateplotdialog.cpp:164
+#: qalculateeditfunctiondialog.cpp:618 qalculateplotdialog.cpp:166
 msgid "Min:"
 msgstr "最小值："
 
-#: qalculateeditfunctiondialog.cpp:624 qalculateeditfunctiondialog.cpp:633
+#: qalculateeditfunctiondialog.cpp:625 qalculateeditfunctiondialog.cpp:634
 msgid "Include equals"
 msgstr "包含相等关系"
 
-#: qalculateeditfunctiondialog.cpp:626 qalculateplotdialog.cpp:167
+#: qalculateeditfunctiondialog.cpp:627 qalculateplotdialog.cpp:169
 msgid "Max:"
 msgstr "最大值："
 
-#: qalculateeditfunctiondialog.cpp:677
+#: qalculateeditfunctiondialog.cpp:678
 msgid "New Argument"
 msgstr "新自变量"
 
-#: qalculateeditmatrixvectordialog.cpp:71
-#: qalculateeditunknownvariabledialog.cpp:40 qalculateeditvariabledialog.cpp:41
-#: qalculateeditvariabledialog.cpp:180 qalculateinsertmatrixvectordialog.cpp:71
+#: qalculateeditmatrixvectordialog.cpp:72
+#: qalculateeditunknownvariabledialog.cpp:41 qalculateeditvariabledialog.cpp:42
+#: qalculateeditvariabledialog.cpp:181 qalculateinsertmatrixvectordialog.cpp:71
 msgid "Edit Variable"
 msgstr "编辑变量"
 
-#: qalculateeditmatrixvectordialog.cpp:96
+#: qalculateeditmatrixvectordialog.cpp:97
 #: qalculateinsertmatrixvectordialog.cpp:75
 msgid "Rows:"
 msgstr "行："
 
-#: qalculateeditmatrixvectordialog.cpp:99
+#: qalculateeditmatrixvectordialog.cpp:100
 #: qalculateinsertmatrixvectordialog.cpp:78
 msgid "Columns:"
 msgstr "列："
 
-#: qalculateeditmatrixvectordialog.cpp:112
-#: qalculateeditmatrixvectordialog.cpp:133
-#: qalculateeditmatrixvectordialog.cpp:295
+#: qalculateeditmatrixvectordialog.cpp:113
+#: qalculateeditmatrixvectordialog.cpp:134
+#: qalculateeditmatrixvectordialog.cpp:296
 #: qalculateinsertmatrixvectordialog.cpp:91
 #: qalculateinsertmatrixvectordialog.cpp:115
 #: qalculateinsertmatrixvectordialog.cpp:275
 msgid "Elements:"
 msgstr "元素："
 
-#: qalculateeditmatrixvectordialog.cpp:146
-#: qalculateeditmatrixvectordialog.cpp:292
+#: qalculateeditmatrixvectordialog.cpp:147
+#: qalculateeditmatrixvectordialog.cpp:293
 #: qalculateinsertmatrixvectordialog.cpp:128
 #: qalculateinsertmatrixvectordialog.cpp:272
 msgid "Elements (in horizontal order):"
 msgstr "元素(水平顺序):"
 
-#: qalculateeditmatrixvectordialog.cpp:189
-#: qalculateeditunknownvariabledialog.cpp:136
-#: qalculateeditvariabledialog.cpp:114
+#: qalculateeditmatrixvectordialog.cpp:190
+#: qalculateeditunknownvariabledialog.cpp:137
+#: qalculateeditvariabledialog.cpp:115
 msgid ""
 "An unit or variable with the same name already exists.\n"
 "Do you want to overwrite it?"
@@ -1592,27 +1592,27 @@ msgstr ""
 "同名的单位或变量已存在。\n"
 "您要覆盖它吗？"
 
-#: qalculateeditmatrixvectordialog.cpp:301
+#: qalculateeditmatrixvectordialog.cpp:302
 msgid "Edit Vector"
 msgstr "编辑向量"
 
-#: qalculateeditmatrixvectordialog.cpp:303
+#: qalculateeditmatrixvectordialog.cpp:304
 msgid "Edit Vector (global)"
 msgstr "编辑向量(全局)"
 
-#: qalculateeditmatrixvectordialog.cpp:305
+#: qalculateeditmatrixvectordialog.cpp:306
 msgid "New Vector"
 msgstr "新建向量"
 
-#: qalculateeditmatrixvectordialog.cpp:310
+#: qalculateeditmatrixvectordialog.cpp:311
 msgid "Edit Matrix"
 msgstr "编辑矩阵"
 
-#: qalculateeditmatrixvectordialog.cpp:312
+#: qalculateeditmatrixvectordialog.cpp:313
 msgid "Edit Matrix (global)"
 msgstr "编辑矩阵(全局)"
 
-#: qalculateeditmatrixvectordialog.cpp:314
+#: qalculateeditmatrixvectordialog.cpp:315
 msgid "New Matrix"
 msgstr "新建矩阵"
 
@@ -1640,75 +1640,75 @@ msgstr "后缀"
 msgid "Case Sensitive"
 msgstr "大小写敏感"
 
-#: qalculateeditunitdialog.cpp:43 qalculateeditunitdialog.cpp:287
+#: qalculateeditunitdialog.cpp:44 qalculateeditunitdialog.cpp:288
 msgid "Edit Unit"
 msgstr "编辑单位"
 
-#: qalculateeditunitdialog.cpp:72
+#: qalculateeditunitdialog.cpp:73
 msgid "Hide unit"
 msgstr "隐藏单位"
 
-#: qalculateeditunitdialog.cpp:80
+#: qalculateeditunitdialog.cpp:81
 msgid "Class:"
 msgstr "类别："
 
-#: qalculateeditunitdialog.cpp:83
+#: qalculateeditunitdialog.cpp:84
 msgid "Base Unit"
 msgstr "基准单位"
 
-#: qalculateeditunitdialog.cpp:84
+#: qalculateeditunitdialog.cpp:85
 msgid "Alias"
 msgstr "别名"
 
-#: qalculateeditunitdialog.cpp:85
+#: qalculateeditunitdialog.cpp:86
 msgid "Composite Unit"
 msgstr "复合单位"
 
-#: qalculateeditunitdialog.cpp:92
+#: qalculateeditunitdialog.cpp:93
 msgid "System:"
 msgstr "体系："
 
-#: qalculateeditunitdialog.cpp:95
+#: qalculateeditunitdialog.cpp:96
 msgid "SI"
 msgstr "国际单位制"
 
-#: qalculateeditunitdialog.cpp:96
+#: qalculateeditunitdialog.cpp:97
 msgid "CGS"
 msgstr "CGS"
 
-#: qalculateeditunitdialog.cpp:97
+#: qalculateeditunitdialog.cpp:98
 msgid "Imperial"
 msgstr "英制"
 
-#: qalculateeditunitdialog.cpp:98
+#: qalculateeditunitdialog.cpp:99
 msgid "US Survey"
 msgstr "美制"
 
-#: qalculateeditunitdialog.cpp:102
+#: qalculateeditunitdialog.cpp:103
 msgid "Relation"
 msgstr "关系"
 
-#: qalculateeditunitdialog.cpp:107
+#: qalculateeditunitdialog.cpp:108
 msgid "Base unit:"
 msgstr "基准单位："
 
-#: qalculateeditunitdialog.cpp:110
+#: qalculateeditunitdialog.cpp:111
 msgid "Exponent:"
 msgstr "指数："
 
-#: qalculateeditunitdialog.cpp:114
+#: qalculateeditunitdialog.cpp:115
 msgid "Relation:"
 msgstr "关系："
 
-#: qalculateeditunitdialog.cpp:121
+#: qalculateeditunitdialog.cpp:122
 msgid "Relation is exact"
 msgstr ""
 
-#: qalculateeditunitdialog.cpp:123
+#: qalculateeditunitdialog.cpp:124
 msgid "Inverse relation:"
 msgstr "倒转关系："
 
-#: qalculateeditunitdialog.cpp:150
+#: qalculateeditunitdialog.cpp:151
 msgid ""
 "A variable or unit with the same name already exists.\n"
 "Do you want to overwrite it?"
@@ -1716,127 +1716,127 @@ msgstr ""
 "同名的变量或单位已存在。\n"
 "您是否要覆盖它？"
 
-#: qalculateeditunitdialog.cpp:175 qalculateeditunitdialog.cpp:219
+#: qalculateeditunitdialog.cpp:176 qalculateeditunitdialog.cpp:220
 msgid "Base unit does not exist"
 msgstr "基准单位不存在"
 
-#: qalculateeditunitdialog.cpp:289
+#: qalculateeditunitdialog.cpp:290
 msgid "Edit Unit (global)"
 msgstr "编辑单位(全局)"
 
-#: qalculateeditunitdialog.cpp:291
+#: qalculateeditunitdialog.cpp:292
 msgid "New Unit"
 msgstr "新单位"
 
-#: qalculateeditunknownvariabledialog.cpp:58
+#: qalculateeditunknownvariabledialog.cpp:59
 msgid "Custom assumptions:"
 msgstr "自定义假设："
 
-#: qalculateeditunknownvariabledialog.cpp:68
+#: qalculateeditunknownvariabledialog.cpp:69
 msgid "Complex Number"
 msgstr "复数"
 
-#: qalculateeditunknownvariabledialog.cpp:69
+#: qalculateeditunknownvariabledialog.cpp:70
 msgid "Real Number"
 msgstr "实数"
 
-#: qalculateeditunknownvariabledialog.cpp:70
+#: qalculateeditunknownvariabledialog.cpp:71
 msgid "Rational Number"
 msgstr "有理数"
 
-#: qalculateeditunknownvariabledialog.cpp:73
+#: qalculateeditunknownvariabledialog.cpp:74
 msgid "Sign"
 msgstr "符号"
 
-#: qalculateeditunknownvariabledialog.cpp:199
+#: qalculateeditunknownvariabledialog.cpp:200
 msgid "Edit Unknown Variable"
 msgstr "编辑未知数变量"
 
-#: qalculateeditunknownvariabledialog.cpp:201
+#: qalculateeditunknownvariabledialog.cpp:202
 msgid "Edit Unknown Variable (global)"
 msgstr "编辑未知数变量(全局)"
 
-#: qalculateeditunknownvariabledialog.cpp:203
+#: qalculateeditunknownvariabledialog.cpp:204
 msgid "New Unknown Variable"
 msgstr "新建未知数变量"
 
-#: qalculateeditvariabledialog.cpp:63 qalculateinsertfunctiondialog.cpp:91
+#: qalculateeditvariabledialog.cpp:64 qalculateinsertfunctiondialog.cpp:91
 msgid "Value:"
 msgstr "值："
 
-#: qalculateeditvariabledialog.cpp:71
+#: qalculateeditvariabledialog.cpp:72
 msgid "Value is exact"
 msgstr ""
 
-#: qalculateeditvariabledialog.cpp:110
+#: qalculateeditvariabledialog.cpp:111
 msgid "Empty value field"
 msgstr "空白值项"
 
-#: qalculateeditvariabledialog.cpp:182
+#: qalculateeditvariabledialog.cpp:183
 msgid "Edit Variable (global)"
 msgstr "编辑变量(全局)"
 
-#: qalculateeditvariabledialog.cpp:185
+#: qalculateeditvariabledialog.cpp:186
 msgid "New Variable"
 msgstr "新变量"
 
-#: qalculateexportcsvdialog.cpp:37 qalculateexportcsvdialog.cpp:54
+#: qalculateexportcsvdialog.cpp:38 qalculateexportcsvdialog.cpp:55
 msgid "Export CSV File"
 msgstr "输出CSV文件"
 
-#: qalculateexportcsvdialog.cpp:42
+#: qalculateexportcsvdialog.cpp:43
 msgid "Current result"
 msgstr "当前结果"
 
-#: qalculateexportcsvdialog.cpp:46
+#: qalculateexportcsvdialog.cpp:47
 msgid "Matrix/vector variable"
 msgstr "矩阵/向量变量"
 
-#: qalculateexportcsvdialog.cpp:51 qalculateimportcsvdialog.cpp:43
+#: qalculateexportcsvdialog.cpp:52 qalculateimportcsvdialog.cpp:44
 msgid "File:"
 msgstr "文件："
 
-#: qalculateexportcsvdialog.cpp:56 qalculateimportcsvdialog.cpp:80
+#: qalculateexportcsvdialog.cpp:57 qalculateimportcsvdialog.cpp:81
 msgid "Delimiter:"
 msgstr "分隔符："
 
-#: qalculateexportcsvdialog.cpp:59 qalculateimportcsvdialog.cpp:83
+#: qalculateexportcsvdialog.cpp:60 qalculateimportcsvdialog.cpp:84
 msgid "Comma"
 msgstr "逗号"
 
-#: qalculateexportcsvdialog.cpp:60 qalculateimportcsvdialog.cpp:84
+#: qalculateexportcsvdialog.cpp:61 qalculateimportcsvdialog.cpp:85
 msgid "Tabulator"
 msgstr "制表符"
 
-#: qalculateexportcsvdialog.cpp:61 qalculateimportcsvdialog.cpp:85
+#: qalculateexportcsvdialog.cpp:62 qalculateimportcsvdialog.cpp:86
 msgid "Semicolon"
 msgstr "分号"
 
-#: qalculateexportcsvdialog.cpp:62 qalculateimportcsvdialog.cpp:86
+#: qalculateexportcsvdialog.cpp:63 qalculateimportcsvdialog.cpp:87
 msgid "Space"
 msgstr "空格"
 
-#: qalculateexportcsvdialog.cpp:63 qalculateimportcsvdialog.cpp:87
+#: qalculateexportcsvdialog.cpp:64 qalculateimportcsvdialog.cpp:88
 msgid "Other"
 msgstr "其它"
 
-#: qalculateexportcsvdialog.cpp:93 qalculateimportcsvdialog.cpp:116
+#: qalculateexportcsvdialog.cpp:94 qalculateimportcsvdialog.cpp:117
 msgid "No file name entered."
 msgstr "未输入文件名。"
 
-#: qalculateexportcsvdialog.cpp:122 qalculateimportcsvdialog.cpp:145
+#: qalculateexportcsvdialog.cpp:123 qalculateimportcsvdialog.cpp:146
 msgid "No delimiter selected."
 msgstr "未选择分隔符"
 
-#: qalculateexportcsvdialog.cpp:135
+#: qalculateexportcsvdialog.cpp:136
 msgid "No variable name entered."
 msgstr "未输入变量名"
 
-#: qalculateexportcsvdialog.cpp:147
+#: qalculateexportcsvdialog.cpp:148
 msgid "No known variable with entered name found."
 msgstr "未能找到指定名称的变量"
 
-#: qalculateexportcsvdialog.cpp:154
+#: qalculateexportcsvdialog.cpp:155
 #, c-format
 msgid ""
 "Could not export to file \n"
@@ -1845,114 +1845,114 @@ msgstr ""
 "无法导出到文件\n"
 "%s"
 
-#: qalculateexpressionedit.cpp:146
+#: qalculateexpressionedit.cpp:148
 msgid "Disable Completion"
 msgstr "停用自动完成"
 
-#: qalculateexpressionedit.cpp:147
+#: qalculateexpressionedit.cpp:149
 msgid "Enable Completion"
 msgstr "启用自动完成"
 
-#: qalculate_tdeui.rc:154 qalculateexpressionedit.cpp:161
-#: qalculateresultdisplay.cpp:333
+#: qalculate_tdeui.rc:154 qalculateexpressionedit.cpp:163
+#: qalculateresultdisplay.cpp:334
 #, no-c-format
 msgid "Meta Modes"
 msgstr "元模式"
 
-#: qalculateexpressionedit.cpp:655 qalculatevariablesdialog.cpp:366
+#: qalculateexpressionedit.cpp:657 qalculatevariablesdialog.cpp:368
 msgid "a previous result"
 msgstr "之前的结果"
 
-#: qalculateexpressionedit.cpp:661 qalculatevariablesdialog.cpp:376
+#: qalculateexpressionedit.cpp:663 qalculatevariablesdialog.cpp:378
 msgid "matrix"
 msgstr "矩阵"
 
-#: qalculateexpressionedit.cpp:663 qalculatevariablesdialog.cpp:378
+#: qalculateexpressionedit.cpp:665 qalculatevariablesdialog.cpp:380
 msgid "vector"
 msgstr "向量"
 
-#: qalculateexpressionedit.cpp:672 qalculatevariablesdialog.cpp:387
+#: qalculateexpressionedit.cpp:674 qalculatevariablesdialog.cpp:389
 msgid "positive"
 msgstr "正数"
 
-#: qalculateexpressionedit.cpp:676 qalculatevariablesdialog.cpp:391
+#: qalculateexpressionedit.cpp:678 qalculatevariablesdialog.cpp:393
 msgid "non-positive"
 msgstr "非正"
 
-#: qalculateexpressionedit.cpp:680 qalculatevariablesdialog.cpp:395
+#: qalculateexpressionedit.cpp:682 qalculatevariablesdialog.cpp:397
 msgid "negative"
 msgstr "负数"
 
-#: qalculateexpressionedit.cpp:684 qalculatevariablesdialog.cpp:399
+#: qalculateexpressionedit.cpp:686 qalculatevariablesdialog.cpp:401
 msgid "non-negative"
 msgstr "非负"
 
-#: qalculateexpressionedit.cpp:688 qalculatevariablesdialog.cpp:403
+#: qalculateexpressionedit.cpp:690 qalculatevariablesdialog.cpp:405
 msgid "non-zero"
 msgstr "非零"
 
-#: qalculateexpressionedit.cpp:696 qalculatevariablesdialog.cpp:412
+#: qalculateexpressionedit.cpp:698 qalculatevariablesdialog.cpp:414
 msgid "integer"
 msgstr "整数"
 
-#: qalculateexpressionedit.cpp:700 qalculatevariablesdialog.cpp:416
+#: qalculateexpressionedit.cpp:702 qalculatevariablesdialog.cpp:418
 msgid "rational"
 msgstr "有理数"
 
-#: qalculateexpressionedit.cpp:704 qalculatevariablesdialog.cpp:420
+#: qalculateexpressionedit.cpp:706 qalculatevariablesdialog.cpp:422
 msgid "real"
 msgstr "实数"
 
-#: qalculateexpressionedit.cpp:708 qalculatevariablesdialog.cpp:424
+#: qalculateexpressionedit.cpp:710 qalculatevariablesdialog.cpp:426
 msgid "complex"
 msgstr "复数"
 
-#: qalculateexpressionedit.cpp:716 qalculatevariablesdialog.cpp:432
+#: qalculateexpressionedit.cpp:718 qalculatevariablesdialog.cpp:434
 msgid "(not matrix)"
 msgstr "(非矩阵)"
 
-#: qalculateexpressionedit.cpp:721 qalculatevariablesdialog.cpp:438
+#: qalculateexpressionedit.cpp:723 qalculatevariablesdialog.cpp:440
 msgid "unknown"
 msgstr "未知"
 
-#: qalculateexpressionedit.cpp:723 qalculatevariablesdialog.cpp:440
+#: qalculateexpressionedit.cpp:725 qalculatevariablesdialog.cpp:442
 msgid "default assumptions"
 msgstr "缺省假设"
 
-#: qalculatefunctionsdialog.cpp:47
+#: qalculatefunctionsdialog.cpp:49
 msgid "Functions"
 msgstr "函数"
 
-#: qalculatefunctionsdialog.cpp:59
+#: qalculatefunctionsdialog.cpp:61
 msgid "Function Name"
 msgstr "函数名"
 
-#: qalculatefunctionsdialog.cpp:75 qalculatefunctionsdialog.cpp:313
-#: qalculateunitsdialog.cpp:99 qalculateunitsdialog.cpp:352
-#: qalculatevariablesdialog.cpp:74 qalculatevariablesdialog.cpp:349
+#: qalculatefunctionsdialog.cpp:77 qalculatefunctionsdialog.cpp:315
+#: qalculateunitsdialog.cpp:101 qalculateunitsdialog.cpp:354
+#: qalculatevariablesdialog.cpp:76 qalculatevariablesdialog.cpp:351
 msgid "Deactivate"
 msgstr "停止"
 
-#: qalculatefunctionsdialog.cpp:174 qalculatefunctionsdialog.cpp:175
-#: qalculatefunctionsdialog.cpp:176 qalculatefunctionsdialog.cpp:234
-#: qalculatefunctionsdialog.cpp:260 qalculatefunctionsdialog.cpp:283
-#: qalculatefunctionsdialog.cpp:509 qalculateunitsdialog.cpp:206
-#: qalculateunitsdialog.cpp:207 qalculateunitsdialog.cpp:208
-#: qalculateunitsdialog.cpp:271 qalculateunitsdialog.cpp:297
-#: qalculateunitsdialog.cpp:320 qalculateunitsdialog.cpp:420
-#: qalculatevariablesdialog.cpp:174 qalculatevariablesdialog.cpp:175
-#: qalculatevariablesdialog.cpp:176 qalculatevariablesdialog.cpp:256
-#: qalculatevariablesdialog.cpp:282 qalculatevariablesdialog.cpp:320
-#: qalculatevariablesdialog.cpp:466
+#: qalculatefunctionsdialog.cpp:176 qalculatefunctionsdialog.cpp:177
+#: qalculatefunctionsdialog.cpp:178 qalculatefunctionsdialog.cpp:236
+#: qalculatefunctionsdialog.cpp:262 qalculatefunctionsdialog.cpp:285
+#: qalculatefunctionsdialog.cpp:511 qalculateunitsdialog.cpp:208
+#: qalculateunitsdialog.cpp:209 qalculateunitsdialog.cpp:210
+#: qalculateunitsdialog.cpp:273 qalculateunitsdialog.cpp:299
+#: qalculateunitsdialog.cpp:322 qalculateunitsdialog.cpp:422
+#: qalculatevariablesdialog.cpp:176 qalculatevariablesdialog.cpp:177
+#: qalculatevariablesdialog.cpp:178 qalculatevariablesdialog.cpp:258
+#: qalculatevariablesdialog.cpp:284 qalculatevariablesdialog.cpp:322
+#: qalculatevariablesdialog.cpp:468
 msgid "Inactive"
 msgstr "不活动的"
 
-#: qalculatefunctionsdialog.cpp:315 qalculateunitsdialog.cpp:354
-#: qalculatevariablesdialog.cpp:351
+#: qalculatefunctionsdialog.cpp:317 qalculateunitsdialog.cpp:356
+#: qalculatevariablesdialog.cpp:353
 msgid "Activate"
 msgstr "激活"
 
-#: qalculatefunctionsdialog.cpp:367 qalculateresultdisplay.cpp:148
+#: qalculatefunctionsdialog.cpp:369 qalculateresultdisplay.cpp:149
 #, c-format
 msgid ""
 "Retrieves data from the %s data set for a given object and property. If "
@@ -1962,40 +1962,40 @@ msgstr ""
 "为给定的对象和属性从数据集%s中提取数据。如果\"信息\"作为属性被输入， 将会弹出"
 "一个对话框显示对象的全部属性。"
 
-#: qalculatefunctionsdialog.cpp:391
+#: qalculatefunctionsdialog.cpp:393
 msgid "Arguments"
 msgstr "自变量"
 
-#: qalculatefunctionsdialog.cpp:412 qalculateinsertfunctiondialog.cpp:194
+#: qalculatefunctionsdialog.cpp:414 qalculateinsertfunctiondialog.cpp:194
 #: qalculateinsertfunctiondialog.cpp:227
 msgid "optional"
 msgstr "可选的"
 
-#: qalculatefunctionsdialog.cpp:416
+#: qalculatefunctionsdialog.cpp:418
 msgid "default: "
 msgstr "缺省："
 
-#: qalculatefunctionsdialog.cpp:426
+#: qalculatefunctionsdialog.cpp:428
 msgid "Requirement"
 msgstr "要求"
 
-#: qalculateimportcsvdialog.cpp:39 qalculateimportcsvdialog.cpp:46
+#: qalculateimportcsvdialog.cpp:40 qalculateimportcsvdialog.cpp:47
 msgid "Import CSV File"
 msgstr "导入CSV文件"
 
-#: qalculateimportcsvdialog.cpp:48
+#: qalculateimportcsvdialog.cpp:49
 msgid "Import as:"
 msgstr "导入为："
 
-#: qalculateimportcsvdialog.cpp:71
+#: qalculateimportcsvdialog.cpp:72
 msgid "First row:"
 msgstr "第一行："
 
-#: qalculateimportcsvdialog.cpp:77
+#: qalculateimportcsvdialog.cpp:78
 msgid "Includes headings"
 msgstr "包括标题"
 
-#: qalculateimportcsvdialog.cpp:149
+#: qalculateimportcsvdialog.cpp:150
 msgid "An error occured when importing the CSV file."
 msgstr "导入CSV文件时出错"
 
@@ -2083,180 +2083,180 @@ msgstr "惰性气体"
 msgid "Transactinide"
 msgstr "锕系后元素"
 
-#: qalculateplotdialog.cpp:64
+#: qalculateplotdialog.cpp:66
 msgid "Plot"
 msgstr "绘图"
 
-#: qalculateplotdialog.cpp:82
+#: qalculateplotdialog.cpp:84
 msgid "Data"
 msgstr "数据"
 
-#: qalculateplotdialog.cpp:83
+#: qalculateplotdialog.cpp:85
 msgid "Function Range"
 msgstr "函数范围"
 
-#: qalculateplotdialog.cpp:101
+#: qalculateplotdialog.cpp:103
 msgid "Vector/matrix"
 msgstr "向量/矩阵"
 
-#: qalculateplotdialog.cpp:104
+#: qalculateplotdialog.cpp:106
 msgid "Paired matrix"
 msgstr ""
 
-#: qalculateplotdialog.cpp:107
+#: qalculateplotdialog.cpp:109
 msgid "Rows"
 msgstr "行"
 
-#: qalculateplotdialog.cpp:109
+#: qalculateplotdialog.cpp:111
 msgid "X variable:"
 msgstr "X轴变量"
 
-#: qalculateplotdialog.cpp:113
+#: qalculateplotdialog.cpp:115
 msgid "Style:"
 msgstr "样式："
 
-#: qalculateplotdialog.cpp:115
+#: qalculateplotdialog.cpp:117
 msgid "Line"
 msgstr "线条"
 
-#: qalculateplotdialog.cpp:116
+#: qalculateplotdialog.cpp:118
 msgid "Points"
 msgstr "点"
 
-#: qalculateplotdialog.cpp:117
+#: qalculateplotdialog.cpp:119
 msgid "Line with points"
 msgstr "点和线"
 
-#: qalculateplotdialog.cpp:118
+#: qalculateplotdialog.cpp:120
 msgid "Boxes/bars"
 msgstr "箱形图/柱状图"
 
-#: qalculateplotdialog.cpp:119
+#: qalculateplotdialog.cpp:121
 msgid "Histogram"
 msgstr "直方图"
 
-#: qalculateplotdialog.cpp:120
+#: qalculateplotdialog.cpp:122
 msgid "Steps"
 msgstr "步骤"
 
-#: qalculateplotdialog.cpp:121
+#: qalculateplotdialog.cpp:123
 msgid "Candlesticks"
 msgstr ""
 
-#: qalculateplotdialog.cpp:122
+#: qalculateplotdialog.cpp:124
 msgid "Dots"
 msgstr ""
 
-#: qalculateplotdialog.cpp:124
+#: qalculateplotdialog.cpp:126
 msgid "Smoothing:"
 msgstr "平滑"
 
-#: qalculateplotdialog.cpp:127
+#: qalculateplotdialog.cpp:129
 msgid "Monotonic"
 msgstr "单调的"
 
-#: qalculateplotdialog.cpp:128
+#: qalculateplotdialog.cpp:130
 msgid "Natural cubic splines"
 msgstr "自然三次样条曲线"
 
-#: qalculateplotdialog.cpp:129
+#: qalculateplotdialog.cpp:131
 msgid "Bezier"
 msgstr "贝赛尔曲线"
 
-#: qalculateplotdialog.cpp:130
+#: qalculateplotdialog.cpp:132
 msgid "Bezier (monotonic)"
 msgstr "贝赛尔曲线(单调的)"
 
-#: qalculateplotdialog.cpp:132
+#: qalculateplotdialog.cpp:134
 msgid "Y-axis:"
 msgstr "Y轴:"
 
-#: qalculateplotdialog.cpp:136
+#: qalculateplotdialog.cpp:138
 msgid "Primary"
 msgstr "主"
 
-#: qalculateplotdialog.cpp:139
+#: qalculateplotdialog.cpp:141
 msgid "Secondary"
 msgstr "从"
 
-#: qalculateplotdialog.cpp:171
+#: qalculateplotdialog.cpp:173
 msgid "Sampling rate:"
 msgstr "采样率："
 
-#: qalculateplotdialog.cpp:176
+#: qalculateplotdialog.cpp:178
 msgid "Step size:"
 msgstr "步长："
 
-#: qalculateplotdialog.cpp:194
+#: qalculateplotdialog.cpp:196
 msgid "Display grid"
 msgstr "显示网格"
 
-#: qalculateplotdialog.cpp:196
+#: qalculateplotdialog.cpp:198
 msgid "Display full border"
 msgstr "显示完整边界"
 
-#: qalculateplotdialog.cpp:199
+#: qalculateplotdialog.cpp:201
 msgid "Logarithmic x scale:"
 msgstr "对数X轴刻度"
 
-#: qalculateplotdialog.cpp:203
+#: qalculateplotdialog.cpp:205
 msgid "Logarithmic y scale:"
 msgstr "对数Y轴刻度"
 
-#: qalculateplotdialog.cpp:207
+#: qalculateplotdialog.cpp:209
 msgid "X-axis label:"
 msgstr "X轴标签"
 
-#: qalculateplotdialog.cpp:210
+#: qalculateplotdialog.cpp:212
 msgid "Y-axis label:"
 msgstr "Y轴标签"
 
-#: qalculateplotdialog.cpp:213
+#: qalculateplotdialog.cpp:215
 msgid "Color display:"
 msgstr "颜色显示："
 
-#: qalculateplotdialog.cpp:217
+#: qalculateplotdialog.cpp:219
 msgid "Color"
 msgstr "彩色"
 
-#: qalculateplotdialog.cpp:220
+#: qalculateplotdialog.cpp:222
 msgid "Monochrome"
 msgstr "单色"
 
-#: qalculateplotdialog.cpp:224
+#: qalculateplotdialog.cpp:226
 msgid "Legend placement:"
 msgstr "图例布置："
 
-#: qalculateplotdialog.cpp:227
+#: qalculateplotdialog.cpp:229
 msgid "Top-left"
 msgstr "左上角"
 
-#: qalculateplotdialog.cpp:228
+#: qalculateplotdialog.cpp:230
 msgid "Top-right"
 msgstr "右上角"
 
-#: qalculateplotdialog.cpp:229
+#: qalculateplotdialog.cpp:231
 msgid "Bottom-left"
 msgstr "左下角"
 
-#: qalculateplotdialog.cpp:230
+#: qalculateplotdialog.cpp:232
 msgid "Bottom-right"
 msgstr "右下角"
 
-#: qalculateplotdialog.cpp:231
+#: qalculateplotdialog.cpp:233
 msgid "Below"
 msgstr "下方"
 
-#: qalculateplotdialog.cpp:232
+#: qalculateplotdialog.cpp:234
 msgid "Outside"
 msgstr "外面"
 
-#: qalculateplotdialog.cpp:403 qalculateplotdialog.cpp:458
-#: qalculateplotdialog.cpp:506
+#: qalculateplotdialog.cpp:405 qalculateplotdialog.cpp:460
+#: qalculateplotdialog.cpp:508
 msgid "Empty expression."
 msgstr "空白表达式。"
 
-#: qalculateplotdialog.cpp:472 qalculateplotdialog.cpp:519
+#: qalculateplotdialog.cpp:474 qalculateplotdialog.cpp:521
 msgid "Empty x variable."
 msgstr "空白X轴变量。"
 
@@ -2424,43 +2424,43 @@ msgstr "状态错误色："
 msgid "Status warning color:"
 msgstr "状态警告色："
 
-#: qalculateresultdisplay.cpp:52
+#: qalculateresultdisplay.cpp:53
 msgid "a matrix"
 msgstr "一个矩阵"
 
-#: qalculateresultdisplay.cpp:54
+#: qalculateresultdisplay.cpp:55
 msgid "a vector"
 msgstr "一个向量"
 
-#: qalculateresultdisplay.cpp:57
+#: qalculateresultdisplay.cpp:58
 msgid "double-click to view/edit"
 msgstr "双击以查看/编辑"
 
-#: qalculateresultdisplay.cpp:60
+#: qalculateresultdisplay.cpp:61
 msgid "Unknown variable"
 msgstr "未知数变量"
 
-#: qalculateresultdisplay.cpp:72
+#: qalculateresultdisplay.cpp:73
 msgid "Prefix"
 msgstr "前缀"
 
-#: qalculateresultdisplay.cpp:336
+#: qalculateresultdisplay.cpp:337
 msgid "Show Parsed Expression"
 msgstr "显示已解析的表达式"
 
-#: qalculateresultdisplay.cpp:342 qalculateresultdisplay.cpp:353
+#: qalculateresultdisplay.cpp:343 qalculateresultdisplay.cpp:354
 msgid "Show Object Info"
 msgstr "显示对象信息"
 
-#: qalculateresultdisplay.cpp:348
+#: qalculateresultdisplay.cpp:349
 msgid "View/Edit Matrix"
 msgstr "查看/编辑矩阵"
 
-#: qalculateresultdisplay.cpp:350
+#: qalculateresultdisplay.cpp:351
 msgid "View/Edit Vector"
 msgstr "查看/编辑向量"
 
-#: qalculateresultdisplay.cpp:382
+#: qalculateresultdisplay.cpp:383
 msgid "Parsed expression:"
 msgstr "已解析表达式："
 
@@ -2484,35 +2484,35 @@ msgstr "罗马数字"
 msgid "Expression Base"
 msgstr "表达式进制"
 
-#: qalculateunitsdialog.cpp:54
+#: qalculateunitsdialog.cpp:56
 msgid "Units"
 msgstr "单位"
 
-#: qalculateunitsdialog.cpp:68
+#: qalculateunitsdialog.cpp:70
 msgid "Names"
 msgstr "名称"
 
-#: qalculateunitsdialog.cpp:69
+#: qalculateunitsdialog.cpp:71
 msgid "Base"
 msgstr "进制"
 
-#: qalculateunitsdialog.cpp:72
+#: qalculateunitsdialog.cpp:74
 msgid "Conversion"
 msgstr "换算"
 
-#: qalculateunitsdialog.cpp:105
+#: qalculateunitsdialog.cpp:107
 msgid "Convert Result"
 msgstr "换算结果"
 
-#: qalculateunitsdialog.cpp:250
+#: qalculateunitsdialog.cpp:252
 msgid "Cannot delete unit as it is needed by other units."
 msgstr "无法删除此单位，因为它被别的单位引用了。"
 
-#: qalculatevariablesdialog.cpp:51
+#: qalculatevariablesdialog.cpp:53
 msgid "Variables"
 msgstr "变量"
 
-#: qalculatevariablesdialog.cpp:60
+#: qalculatevariablesdialog.cpp:62
 msgid "Variable Name"
 msgstr "变量名"