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RedCrab Changelog

What's new in RedCrab 8.3.0

Mar 2, 2023
  • Improved error message for incorrectly placed parentheses. Improved startup speed. New function YawPR() for matrix rotation.

New in RedCrab 8.2.0 (Jul 28, 2022)

  • Additional features unlocked for the freeware.

New in RedCrab 8.1.0 (May 18, 2021)

  • Hyperlinks of the online help adapted to the new server structure
  • The php links of the older Redcrab versions are no longer supported on the new web server

New in RedCrab 8.0 (May 18, 2021)

  • Cumulative update with new features, bug fixes and improvements
  • Revised user interface
  • Functional scope of the freeware expanded
  • More improvements in details.

New in RedCrab 7.16.0 (Oct 26, 2020)

  • Cumulative update with new features, bug fixes and improvements.
  • New functions in the Geometry group: Cone and Pyramid for calculating cones and pyramids. More improvements in details.

New in RedCrab 7.15.0 (Oct 1, 2020)

  • Cumulative update with new features, bug fixes and improvements.
  • Two new electrical functions (Rectify1, Rectify2). More improvements in details.

New in RedCrab 7.14.0 (Jul 5, 2020)

  • Cumulative update with new features, bug fixes and improvements.
  • Five new electrical functions. More improvements in details.

New in RedCrab 7.13.0 (May 28, 2020)

  • Cumulative update with new features, bug fixes and improvements.
  • New electrical functions RCTime, RCLoad, RCUnload for calculating the charging voltage in RC circuits. More improvements in details.

New in RedCrab 7.12.0 (Nov 28, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • New functions Add2, Div2, Mul2, Sub2 for calculating lists. More improvements in details.

New in RedCrab 7.11.0 (Sep 24, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • Improved display of function tooltips on the worksheet. More improvements in details.

New in RedCrab 7.10.1 (Sep 16, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • Financial functions NPV and SYD improved. Display of the function names inserted from the toolbar improved. More improvements in details.

New in RedCrab 7.10.0 (Sep 11, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • New: Financial functions improved - DDB, IPmt and PPmt extended to display lists.

New in RedCrab 7.9.0 (Aug 28, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • New: In formulas prefixes can be used instead of exponents.

New in RedCrab 7.8.1 (Aug 19, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • Fixed bug in cursor control. In the second line, it could happen that the cursor jumped down two lines. Geometry class Cone extended. Helplinks adapted to the class Sphere

New in RedCrab 7.8.0 (Aug 8, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • New in freeware: The results of different formulas can be formatted differently.

New in RedCrab 7.7.2 (Jul 30, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • Links to the online help adapted to new pages. Function panel revised.

New in RedCrab 7.7.1 (Jul 30, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • New integrated functions Beta and IBeta, links to the online help of the statistics group updated. Function panel revised. More improvements in details.

New in RedCrab 7.7 (Jun 19, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • Function panel revised. More improvements in details.

New in RedCrab 7.6.1 (Jun 2, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • New feature for entering functions. If you type of a function name in the worksheet, a tool tip with the parameter list appears below the formula. More improvements in details.

New in RedCrab 7.5.0 (May 20, 2019)

  • Cumulative update with new features, bug fixes and improvements. Function panel and tooltips improved. The function buttons of the functions with optional parameters of the groups Basics, Trigometry and Hyperbolic have been replaced by menus. The online help of the function group Arrays was partly lost by changing the Internet server. The problem is fixed. More improvements in details.

New in RedCrab 7.4.1 (May 10, 2019)

  • Important security update with bug fixes and improvements.
  • Since the update 7.3.1 last week, an error has occurred that can cause a crash when a term begins with a parenthesis. The problem is fixed.

New in RedCrab 7.4.0 (May 8, 2019)

  • Update with bug fixes and improvements.
  • Improved trigone functions. Optional parameter determines the calculation in degrees or radians

New in RedCrab 7.3.1 (Apr 29, 2019)

  • Security update with bug fixes and improvements.
  • Error message improved. If more than one error message was displayed in a calculation, it could happen that the red frame around the formula was not deleted. The problem is fixed.

New in RedCrab 7.3.0 (Apr 24, 2019)

  • Security update with bug fixes and improvements.
  • New feature is the function Sound, which sends waveforms in data fields to the sound device. More improvements in details.

New in RedCrab 7.2.0 (Mar 13, 2019)

  • Important security update with bug fixes and improvements.
  • From version 7.0 it could happen that the activation of the full version did not work. The online help of hyperbolic functions in English was partially unavailable. The bugs are fixed.

New in RedCrab 7.1.0 (Mar 5, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • Financial calculation and bit manipulation now available in freeware.
  • Geomerie functions for distance calculation expanded and improved.

New in RedCrab 7.0.0.701 (Feb 21, 2019)

  • User interface improved. You can choose between classic menu with toolbars or ribbon menu. Cumulative update with new features, bug fixes and improvements.

New in RedCrab 6.38.0 (Jan 16, 2019)

  • Cumulative update with new features, bug fixes and improvements.
  • Improvements in display of news and informations. More improvements in details.

New in RedCrab 6.37.0 (Nov 1, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • An error was occurred at program start, if the start information is disabled in the settings. Improvements in the geometry functions. More improvements in details.

New in RedCrab 6.36.0 (Aug 29, 2018)

  • Important security update with bug fixes and improvements.
  • Moving to a new Internet server required adjustments to online protocols. The online activation of the RedCrab full version is only possible from version 6.36! Also numerous links of the online help are affected. More improvements in details.

New in RedCrab 6.35.0 (Aug 7, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • Display of the status line and the start information improved. At Functions which returns a class as a result, it could happen that a wrong error message was displayed; the bug is fixed. More improvements in details.

New in RedCrab 6.34.0 (Jul 16, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • The range of random numbers has been expanded. New buttons for text formatting in freeware available. More improvements in details.

New in RedCrab 6.33.0 (Jun 14, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • Better adjustment of the font size, if in the Windows Display Setting a scaling factor >100% is set. Improvement of the error message with invalid function parameters.

New in RedCrab 6.32.1 (Jun 4, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • Improving the plot function. Curves with one parameter were not displayed as described in the manual. The bug is fixed.

New in RedCrab 6.32.0 (May 21, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • User interface, QuickAccessToolbar improved. More improvements in details.

New in RedCrab 6.31.0 (May 15, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • User interface improved. More improvements in details.

New in RedCrab 6.30.1 (Apr 26, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • Insertion of formulas improved. More improvements in details.

New in RedCrab 6.30.0 (Mar 23, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • Display of lists improved. Single-column lists are always displayed vertically. One-line (horizontal) lists can be displayed horizontally or vertically.
  • More improvements in details.

New in RedCrab 6.29.3 (Mar 13, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • Iinsertion and deletion of rows are improved (Shift + Insert; Shift + Delete). Positions of the text, image and plot boxes are adjusted when the rows are moved.
  • More improvements in details.

New in RedCrab 6.29.2 (Mar 2, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • By changing the web server from http to https, there were problems with the activation of the RedCrab PLUS software. The problem is solved.
  • Changes in the display of the virtual keyboard and the number and synbol panel.
  • More improvements in details.

New in RedCrab 6.29.1 (Feb 27, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • A missing comma before a string in a parameter list did not produce an error message. The problem is solved. The handling of pop-up menus and pannels improved. More improvements in details.

New in RedCrab 6.29.0 (Feb 16, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • Email registration simplified.
  • Labels are always displayed in foreground after loading the worksheet from the file
  • Labels stay in the foreground when the box behind the BringToFront button is clicked.
  • More improvements in details.

New in RedCrab 6.28.1 (Feb 7, 2018)

  • The link to unlock the test mode has been changed. Some users had problems finding the page.
  • Otherwise like version 6.28: Cumulative update with new features, bug fixes and improvements.
  • New procedure for testing the full version of RedCrab PLUS. All functions can be unlocked with a code for 24 hours.

New in RedCrab 6.28.0 (Feb 5, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • New procedure for testing the full version of RedCrab PLUS. All functions can be unlocked with a code for 24 hours. More information here
  • More improvements in details.

New in RedCrab 6.27.0 (Jan 31, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • New function AxisX and AxisY, for setting the scale in the plot box.
  • New Dot function for displaying points in the plot box
  • Fixed a bug in the line funtion when specifying 4 parameters.
  • More improvements in details.

New in RedCrab 6.26.3 (Jan 22, 2018)

  • Cumulative update with new features, bug fixes and improvements.
  • New plot function Arc for drawing of arcs.
  • Error messages for matrices function improved
  • More improvements in details.

New in RedCrab 6.26.2 (Jan 10, 2018)

  • Cumulative update with new features, bug fixes and improvements. Drawing of the root symbol has been improved. The i-tag of an imaginary number as the last character above a fraction bar could cause an error message; the bug is fixed. More improvements in details.

New in RedCrab 6.26.1 (Jan 3, 2018)

  • Cumulative update with new features, bug fixes and improvements. A minus sign between an open parenthesis and a function name could cause an error. The bug is fixed. More improvements in details.

New in RedCrab 6.26 (Dec 21, 2017)

  • Cumulative update with new features, bug fixes and improvements. When adding a real number with a big integer number an error could occur. This bug is fixed. In RedCrab PLUS, the online information on the start screen can be disabled. More improvements in details.

New in RedCrab 6.25.2 (Dec 12, 2017)

  • Cumulative update with new features, bug fixes and improvements.
  • Amongst other things, paste from clipboard supports now Subscript and Superscript.
  • Display of exponents improved.

New in RedCrab 6.25 (Nov 29, 2017)

  • Cumulative update with new features, bug fixes and improvements. All RedCrab PLUS features unlocked until 31.12.2017. Function panel improved.

New in RedCrab 6.24.0 (Oct 25, 2017)

  • Cumulative update with new features, bug fixes and improvements. Among other things, paste clipboard content from external programs is improved. New function Distance and new class Point.

New in RedCrab 6.23.0 (Oct 11, 2017)

  • Cumulative update with new features, bug fixes and improvements. Display error of technical exponents fixed. Functions for columns and rows in arrays released for freeware.

New in RedCrab 6.22.2 (Oct 8, 2017)

  • User interface upgraded

New in RedCrab 6.22.1 (Oct 5, 2017)

  • Cumulative update with new features, bug fixes and improvements. function panel upgraded

New in RedCrab 6.21.0 (Sep 25, 2017)

  • Cumulative update with new features, bug fixes and improvements. New functions AndBit, OrBit, XorBit and more.

New in RedCrab 6.20.0 (Sep 12, 2017)

  • Cumulative update with new features, bug fixes and improvements. New functions for graphical representation of complex numbers and and statistical evaluations.
  • New function:
  • Erf, Erfc, Ierf, Ierfc, Beta, IBeta, PlotFiveN

New in RedCrab 6.19.0 (Aug 30, 2017)

  • Cumulative update with new features, bug fixes and improvements. New functions for Bessel, Struve, Psi and more.

New in RedCrab 6.18.0 (Aug 15, 2017)

  • Cumulative update with new features, bug fixes and improvements. Display of tables improved. Function Rnd and URnd improved. New function Rndf and more improvements in details.

New in RedCrab 6.17.1 (Aug 8, 2017)

  • Cumulative update with bug fixes and improvements. Bug-fix in the selection of root symbols.

New in RedCrab 6.17.0 (Aug 7, 2017)

  • Cumulative update with new features, bug fixes and improvements. Input handling with fraction bar and root symbols improved. More improvements in details.

New in RedCrab 6.16.0 (Jul 25, 2017)

  • Cumulative update with new features, bug fixes and improvements. Tooltips and design improved.

New in RedCrab 6.15.0 (Jul 17, 2017)

  • Cumulative update with new features, bug fixes and improvements. Undo function improved and more improvements in detail.

New in RedCrab 6.14.0 (Jun 22, 2017)

  • Cumulative update with new features and improvements.
  • New format of the Mathframes.
  • Functions of Insert, Delete, Home, End and Return keys improved.

New in RedCrab 6.13.0 (Jun 15, 2017)

  • Cumulative update with new features and improvements.
  • New Popup menus and more improvements in detail.

New in RedCrab 6.12.0 (Jun 8, 2017)

  • Cumulative update with bug fixes and improvements.
  • New functions: Ellipse, Line, Rect.

New in RedCrab 6.11.0 (Jun 2, 2017)

  • Cumulative update with bug fixes and improvements.
  • Enhanced printer features and more.

New in RedCrab 6.10.3 (Apr 27, 2017)

  • Cumulative update with bug fixes and improvements. After a run-time error, the button enter was blocked; this bug is fixed.

New in RedCrab 6.10.2 (Apr 18, 2017)

  • Cumulative update with bug fixes and improvements.

New in RedCrab 6.10.1 (Feb 22, 2017)

  • Cumulative update with bug fixes and improvements.

New in RedCrab 6.10.0 (Feb 6, 2017)

  • Security update! Combined update with bug fixes and improvements.
  • Bug fix: Depending of the keyboard setting, subscript switching with the keys CTRL + 6 doesn't work. Undo function improved. More improvements in detail.
  • New function: Surface() draws 3D-surfaces and wire frame models. New functions for tables and matrices: RemCol(), RemRow() deletes columns and rows. Calculation of L1 and L2 norm of a matrix with Norm1() and Norm2(). GetRow() returns a matrix row.

New in RedCrab 6.9.0 (Feb 6, 2017)

  • Security update! Combined update with bug fixes and improvements.
  • Bugfix: An empty reference in charts or image boxes could cause a run-time error.
  • Incorrect setting of the keyboard and typing an invalid character could block the keyboard.
  • Ooutput of strings in tables improved.
  • More improvements in details.
  • New functions for tables and matrices: GetAt, SetAt, GetCol, Chol, Recon, GetCol, LU, QR, Svr.
  • The function ClrCol, ClrRow, Min, Max are improved.

New in RedCrab 6.8.1 (Jan 13, 2017)

  • Security update! Combined update with bug fixes and improvements.
  • Bugfix: In version 6.8 an error can occur when a table which contains text is displayed.
  • New: More then 30 new functions for data fields and matrices in freeware version released.

New in RedCrab 6.8.0 (Jan 10, 2017)

  • 12 new functions for matrices and arrays. Font setting in text boxes and display of tables improved. More improvements in details.

New in RedCrab 6.7.0 (Dec 13, 2016)

  • Security update. Cumulative update with bug fixes and improvements.
  • 15 new scientific functions
  • Trigonometry settings (Deg,Rad) now saved in file
  • New plot function for drawing of function graphs.
  • Reference setting for chart boxes improved
  • Color panel and color setting bug from version 6.6 ist fixed
  • Revised function Panel and more improvements in detail.

New in RedCrab 6.6.1 (Dec 2, 2016)

  • An error in the BigInteger unit occurred in version 6.6.0. The function big() is temporarily blocked. Revised function Panel and more improvements in detail.

New in RedCrab 6.6.0 (Dec 1, 2016)

  • Security update! Cumulative update with bug fixes and improvements:
  • Problems with empty text boxes are fixed
  • Wrong display of legends in charts with one series is fixed
  • 30 statistics functions
  • 15 generator functions
  • 6 conversation functions
  • New function Big() for calculations with maximum range and accuracy. Revised function Panel and more improvements in detail.

New in RedCrab 6.5.0 (Dec 1, 2016)

  • Cumulative update with bug fixes and improvements. A problem that occurred when the HALT button is clicked is now fixed, incorrect error message when an empty TextBox is closed is eleminated. Empty, inactive text boxes are marked with a light frame. More improvements in detail.

New in RedCrab 6.4.0 (Nov 1, 2016)

  • RedCrab includes an integrated application interface (API). The API can send data to external programs for calculation. The external programs can run on the same computer or on other computers in the network.
  • Tooltips improved and other improvements in detail.

New in RedCrab 6.3.1 (Oct 25, 2016)

  • Cumulative update with bug fixes. Including a bug, if displays tables in decimal mode fixed, problem in the definition of lists with the semicolon after a bracket fixed and other improvements in detail.

New in RedCrab 6.3.0 (Sep 26, 2016)

  • Cumulative update with bug fixes. Bug fix in display of single-column list in separate frame, rounding error with Cos(180) fixed. Revised text and chart toolbars and display at Win7 and XP improved and other improvements in detail.

New in RedCrab 6.2.1 (Sep 19, 2016)

  • Online registration improved.

New in RedCrab 6.2.0 (Sep 13, 2016)

  • Cumulative update with bug fixes and improvements.
  • NEW: 3D-Surface and Wireframe charts
  • Cursor control improved

New in RedCrab 6.1.1 (Sep 5, 2016)

  • Cumulative update with bug fixes and improvements:
  • Data fields in results with more than 2 dimensions shows the lowest level and is displayed in orange.
  • A complex number can be used as the exponent of a real number.
  • A user-defined function can be used as exponent.
  • Bug fix: the multiplication sign on the number pad does not appear. German keyboard: the decimal point of the number block will be displayed as point (instead of comma).
  • The occasional disappearance of Curors has been fixed.

New in RedCrab 6.1 (Aug 29, 2016)

  • Cumulative update with bug fixes and other improvements in detail. New: Display of lists can be toggled now vertically or horizontally.

New in RedCrab 6.0.0 (Aug 17, 2016)

  • New user interface with improved graphics.
  • New chart library and more improvements in details.

New in RedCrab 5.7.2.90 (Apr 22, 2016)

  • Cumulative Update with improvements on tool box buttons. More improvements in details.

New in RedCrab 5.7.1 (Mar 9, 2016)

  • New: Toolbars of text-, chart-, image-boxes etc. are now displayed at the top of the worksheet. The tool bars are now also available in the freeware version
  • New functions for calculation of complex numbers

New in RedCrab 5.7.0 (Feb 22, 2016)

  • New: Calculation with complex numbers and complex variables. New funktions Re, Im, Phase, Magnitude, FromPolar and Conjugate for complex number handling.
  • Display of tables improved and more improvements in details.

New in RedCrab 5.6.0 (Jan 14, 2016)

  • Mathematics classes for geometric figures (details under News).
  • More improvements in detail.

New in RedCrab 5.5.2 (Dec 28, 2015)

  • Cumulative Update with improvements on editor, copy, paste and subscript functions. More improvements in details.

New in RedCrab 5.5.1 (Dec 18, 2015)

  • New operators for lists with select function. Help for desktop buttons improved.
  • More improvements in detail.

New in RedCrab 5.5.0 (Nov 23, 2015)

  • RedCrab 5.5 runs with Microsoft Framework 4.0 (before only 4.5) and can be used also on Windows XP.
  • The manual is available online and can displayed from the program. Right mouse click on buttons or menus open their description.
  • Editor improved, scrollbars errors fixed, page-up, down installed, cursor control improved. Paste with CTRL + V installed.
  • Load Microsoft Excel files.
  • More improvements in detail.

New in RedCrab 5.4.0 (Nov 9, 2015)

  • Interactive online help for all internal functions with F1 key or mouse click. New functions for manipulating lists: Flat, Split, New, Pick, Intersect, SetDiff, SetXor, Union, Unique.
  • More improvements in detail..

New in RedCrab 5.3.1 (Oct 28, 2015)

  • Troubleshooting and improvements in details.
  • Units of measurement can be switched off.
  • New features:
  • Imbed checks bit status.
  • Power handles exponent.
  • Min andMax extended for real numbers.
  • Clip, Scale,Remove, Reverse, Trim, and Insert for table manipulation.
  • Sort, DSort, TextSort und TextDSort to the sorting tables.

New in RedCrab 5.3.0 (Oct 15, 2015)

  • Scroll bar improved. The full version can save files as a demo, with all full version features. Display of errors improved. Voice output for results. Troubleshooting and improvements in details etc.

New in RedCrab 5.2.4.66 (Oct 1, 2015)

  • Further improvements and bug fixes in details. Among other things, accelerated display and better handling of large data fields.

New in RedCrab 5.2.3.62 (Sep 15, 2015)

  • Printer output improved.
  • Further improvements and bug fixes in details.
  • Text file load error fixed.

New in RedCrab 5.2.1.60 (Sep 7, 2015)

  • Bug fixes and further improvements of details in editor user interface and result display. Display of hex, octal and binary numbers are changed from
  • $, C$ and B$ to 0x, 0c und 0b.

New in RedCrab 5.2.0.59 (Aug 18, 2015)

  • User interface improved. Menus in windows 7 improved.
  • Further improvements and bug fixes in details.

New in RedCrab 5.1.3.49 (Jul 20, 2015)

  • Subscript and superscript handling improved
  • The Home and End keys handling improved
  • DIV and SQR supports calculation with units
  • Fraction bar can be drawn with double click on the slash key. (Previously slash + CTRL)
  • Display of octal numbers improved
  • And further improvements in details

New in RedCrab 5.1.2.48 (Jul 8, 2015)

  • Edit Box improved. Text formatting problems fixed. Word Wrap function implemented.
  • Display of chart boxes and chart series improved.
  • Result formatting problems of Greek letters fixed.

New in RedCrab 5.1.1.47 (Jun 29, 2015)

  • Edit Box improved. Text formatting problems fixed. Word Wrap function implemented.
  • Display of chart boxes and chart series improved.
  • Result formatting problems of Greek letters fixed

New in RedCrab 5.1.0.41 (Jun 22, 2015)

  • New WPF user interface
  • Improved tooltips with graphic and examples
  • Tooltips in German and English. Other languages can be added.
  • Switch between text insert or overwrite is possible.
  • New functions
  • Functions for financial calculation(+)
  • Accuracy 28 places(+)
  • Calculation with units of measure(+)
  • Individual formatting of results(+)
  • Predefined result formats for the most common symbols(+)
  • Individual toolbars on inserted boxes(+)
  • More then 30 chart types(+)
  • (+) These features are available only in shareware mode.

New in RedCrab 4.48.00 (Feb 9, 2015)

  • Display of scientific exponent implemented (in menu Options)
  • New plot function FlootFill
  • Bug fix: chart box mouse pointer

New in RedCrab 4.47.00 (Mar 10, 2014)

  • Plot reference on Chart boxes improves the chart box style for presentations. You can add text and highlighting on any position
  • Plot boxes have Print function. Print of Chart boxes improved
  • Bug fixes: Error in log () function and chart box popup menu fixed

New in RedCrab 4.46.00 (Feb 24, 2014)

  • New: Definition of functions
  • Security update, bug fixes: Insert overwrote the character left to the root symbol
  • Memory management improved
  • Calculation of selected formulas improved

New in RedCrab 4.45.00 (Feb 10, 2014)

  • Chart box improved: dialog box for axes settings. X axis reference.
  • Security update: memory management improved.
  • Bug fix: Error in insert column fixed (colon was overwritten)

New in RedCrab 4.44.00 (Jan 20, 2014)

  • Selection of formulas with a mouse click
  • Calculation of selected formulas
  • error message system is improved: identify and report of wrong user setting in Long Term mode
  • Security Update: bug fixes in Editor and data encapsulation in recursive function calls

New in RedCrab 4.43.00 (Jan 6, 2014)

  • Debugger for searching and fixing of errors in self written functions
  • Commands Trace, Watch und Break.
  • Debugger menu: Run, Step Into, Step Over, Ignore Break
  • Security update: Bugfixes

New in RedCrab 4.42.00 (Dec 9, 2013)

  • Chart Box settings for series and legends (colour and text).
  • Print Chart Box
  • New Toolbox buttons for “Insert Plot Box” and “View Program Buttons”.
  • Bug fix; Slider position

New in RedCrab 4.41.00 (Nov 8, 2013)

  • New: Copy of ChartBox, ImageBox and ResultBox to clipboard supported
  • Worksheet insert and delete improved
  • User manual improved: The content overview has hyperlinks to the description
  • Freeware and shareware manual are combined in one user manual

New in RedCrab 4.40.00 (Oct 16, 2013)

  • New: Plotbox for graphic creation.
  • 35 new functions support the Plotbox: PlotLine, PlotRect, PlotEllipse, PlotPie, Polybizier, PenColor, PenStyle, BrushColor .......

New in RedCrab 4.34.00 (Oct 3, 2013)

  • Security Update : Bug fix in program editor
  • New functions Sqr and Sqrt
  • New input and output functions in program interpreter : Input, Display and Menu (see demo program: Finance.rcc)

New in RedCrab 4.33.10 (Aug 1, 2013)

  • Bug fix: error message - Expired date - disabled.

New in RedCrab 4.33.00 (Jun 27, 2013)

  • Security Update : Bug fixes in Worksheet and Program Editor
  • In self programmed functions, the index of data fields now begins with [1] instead with [0]. If you use direct access to single element of data fields in your program, please change this to the new ruling.
  • New Constants: TRUE = 1; FALSE = 0

New in RedCrab 4.32.00 (Jan 14, 2013)

  • Slider box available in freeware.
  • The on/off state of the function panel is saved, and restored if RedCrab restarts.
  • In definition of data fields you can insert extern data tables and variables qualified by module name.
  • Call of self written functions with empty parameter list enabled.
  • Assign to single rows in data fields (a[b]=c).
  • Definition and assign to data fields improved: " Let x [ ] = a * b " and " define x [ ]= [1..16] * [1..4] fill 0 " enabled.
  • Automatic index handling per Next command in data field assignment (RedCrab program language).
  • New Index function returns the last index which is used by Next.
  • Bug fix in transparency of result boxes.
  • Display of error message position improved.

New in RedCrab 4.31.00 (Dec 15, 2012)

  • Upgrades:
  • The reference variable of result boxes can now be input with keyboard.
  • Undo function improved
  • Bug fixes:
  • Chart box becomes invisible, when toggled between NonSync and GridSync mode.
  • After loading of RedCrab PLUS demo files in freeware mode, there was a problem with saving of freeware files.
  • The definition of complex data field which includes data ranges could cause a runtime error.

New in RedCrab 4.30.00 (Nov 5, 2012)

  • Windows 8 tested and user interface upgraded.
  • Rectangle buttons with larger text fields improved the readability of function names on high resolution displays.
  • Adjustable size of function panel and buttons improved the readability and handling on touch screens and tablet pc.
  • The command line start option “/d“, reset the Windows Registry settings.

New in RedCrab 4.21.00 (Jun 26, 2012)

  • The display settings of FIX and FLT buttons, number of displayed digits and the EXP (exponent) are saved to data files. Reload of the files restores the settings.
  • The Freeware can load data sheet which includes shareware programs and the worksheet is free to use. But the program code is read only and file saved is disabled.
  • Bug fix in display module

New in RedCrab 4.20.00 (Jun 19, 2012)

  • Bugfixes
  • Insert function upgraded
  • Content of chart boxes can be zoomed

New in RedCrab 4.14.00 (May 21, 2012)

  • New features:
  • DTime returns the DateTime value for date and time calculation
  • DTimeF formats DateTime in year, month, day, hour, minute and second
  • DateTime values can be displayed as formatted text in result boxes.
  • Det returns the determinant of a 2x2 or 3x3 matrix.
  • Invx inverse a 2x2 or 3x3 matrix.
  • In field-definition you can optionally specify the increment of a ranges.
  • Display of tables inproved.

New in RedCrab 4.13.00 (Apr 12, 2012)

  • New features:
  • Access to single cells in multidimensional fields.
  • Dim(x) returns the number of dimensions of data fields.
  • Cols(x) returns the number of columns of data fields.
  • Rows(x) returns the number of rows of data fields.
  • Input of binary- and octal numbers.
  • Output of binary- and octal numbers in result boxes.
  • Bug-fixes:
  • Runtime error by invalid input of: x=x[1..4]fixed.
  • Flickering of function panel (right) by pressing of Ctrl + Enter fixed.
  • Runtime error by invalid option in result boxes fixed.

New in RedCrab 4.12.00 (Mar 20, 2012)

  • New features
  • By chart boxes, the option X/Y position allows the free definition of X and Y
  • coordinates.
  • Bugfixes:
  • Run time error fixed in display module: problem happened when displayed
  • single-column field or more chart boxes.
  • Use of constant “e” results in a wrong error message.

New in RedCrab 4.11.00 (Mar 5, 2012)

  • New features:
  • The decimal key below the numeric keypad (point / comma) produces a decimal point always, regardless of the country setting.
  • For the function "SUM ()" you can use alternate the Greek letter "S".
  • Bugfix:
  • CPU freezes when subscript symbols were behind a number.
  • Corrected error message when field definition is wrong [1..(a*b)].

New in RedCrab 4.10.00 (Jan 16, 2012)

  • New features for field and financial calculation:
  • AddIn, AddTo, AddOn, MulIn, MulTo, MulAd, Patt
  • Bugfix:
  • When inserting columns, problems occurred when result was behind a formula.
  • Mouse pointer showed wrong symbol when leaving text box.
  • Runtime error under Linux OS / Wine fixed.

New in RedCrab 4.01.00 (Dec 19, 2011)

  • Difference to 4.0 beta, improvements in details, particularly in display of chart
  • boxes and tables.

New in RedCrab 4.0 Beta (Dec 19, 2011)

  • Calculation with multidimensional data fields.
  • Chart boxes to display results graphically.
  • Variable overload
  • Standard Functions:
  • Round rounded to the nearest whole number.
  • Int returns the integer part of a value.
  • Frac returns the fractional part of an argument.
  • Rnd returns a random integer number.
  • Abs returns the absolute value of numbers and fields.
  • Functions / operators of dynamic data fields:
  • Join connects one or two-dimensional fields with each other.
  • Fill fills all elements of a field with a specified value.
  • Mulx operator for multiplication of matrices.
  • Trans producing the transpose of a matrix .
  • Min return the minimum value of fields.
  • Max return the maximum value of fields.
  • Count returns the number of elements of fields.
  • Aver returns the mean values of successive elements of fields.
  • URnd fills a field with a series of unique random numbers.
  • Statistic functions:
  • Sum returns the sum of the elements in fields.
  • Prod returns the product of all elements of fields.
  • Cusum returns cumulative sum.
  • Sort sorts field elements from low to high values.
  • DSort sorts field elements from high to low values .
  • Median returns the median value of fields .
  • Mean returns the mean value of field.
  • Vari returns the variance of data fields .
  • SVari returns the variance of an excample.
  • StDev returns the standard deviation of data fields.
  • SStDev returns the standard deviation of examples.
  • Diff returns the difference values of successive elements of fields.
  • LQuart returns the value of the first quartile.
  • UQuart returns the value of the third quartile.
  • QRan returns the area from the 1st to 3rd quartiles.

New in RedCrab 3.50.31 (Sep 24, 2011)

  • Copy, Cut and Paste with Ctrl+C, Ctrl+X and Ctrl+V keys provided.
  • Bugfix in Display Module.

New in RedCrab 3.50.30 (Sep 5, 2011)

  • Virtual Keyboard and Function Panel always stay on top
  • “Message boxes always stay on top
  • “Function keys groups can be switch on / off on function panel. The items in the menu ''View'' is deleted.
  • New button on the toolbar to turn on / off Virtual Keyboard and Functions Panel.
  • Bugfixes:
  • Root symbol was not displayed in the second row since version 3.50.10 .
  • Occasional delay when switching between windows is fixed.

New in RedCrab 3.50.23 (Aug 14, 2011)

  • Solved problem by start with command line parameter.
  • Ctrl + Enter key has written an invalid symbol.

New in RedCrab 3.50.20 (Jul 25, 2011)

  • The worksheet now has a fixed size of 256 x 256 cells. The Options menu to change the size between "72 x 72", "144 x 144" and "108 x 48" is removed. To improve the type face, the cell format has been changed from 1 / 1.33 (width / height) to 1 / 1.50.
  • A new file format takes up less disk space.
  • The output to the printer has been revised and its functions expanded.
  • By default, 64 columns per page are printed.
  • If necessary, the worksheet is split into several pages.
  • By entering a different value (columns per page), you can increase or decrease the printer output.
  • Center Selection prints the selected area at the center of the page.
  • With the check box Fit to page the print-out is adjusted to the page size. The Columns per Page setting is ignoring.
  • Printing problems of result boxes and images with transparent backgrounds have been fixed.
  • Page Setup improved.
  • Bugfixes

New in RedCrab 3.40.00 (Jun 21, 2011)

  • Long Term:
  • switch mode for long variable names. Example: "abc " is not interpreted as “a*b*c” rather as one word.
  • When Result boxes saved to file, they are pre-setted to BringToFront when the status was undefined.
  • Bug in save backup file by start from CD-ROM eliminated.

New in RedCrab 3.31.00 (Jun 21, 2011)

  • Reopen:
  • The Clear function clears the worksheet and the undo list, without prompting.
  • Data are stored in a backup file. If the Clear button was clicked by mistake, the worksheet can be restored with Reopen function.
  • Remark:
  • Remark marks data in the worksheet as a comment
  • Root symbol without root line forbidden.( V3.30.20)
  • redcrab.con File upgrade.
  • Editor upgrade.

New in RedCrab 3.30.00 (Jun 21, 2011)

  • A Virtual Keyboard can switch on/off in menu View. This make easy input of
  • special symbols like Greek character.
  • Error fixed in editor

New in RedCrab 3.21.00 (Jun 21, 2011)

  • Settings can either be stored in a file in the programs root directory, instead in the PC' s Windows registry. The settings are always available to the Program, also if RedCrab runs from USB stick on different computers.
  • Upgrade of the user interface.
  • Casually flickering of the menu bar / tool box by actions eliminated.

New in RedCrab 3.20.00 (Jun 21, 2011)

  • Result Boxes:
  • With Result boxes you can display formatted result of calculations on any
  • worksheet position.So you can insert results directly on technical drawings.
  • Result boxes can displayed results with SI-Prefixes and units.
  • Error fixed:
  • 'Text to Image' doas not work correctly,
  • double click on Image box produce an error message
  • buttons in message boxes vanished if ALT key pressed.

New in RedCrab 3.10.00 (Feb 14, 2011)

  • Several expressions are written in a row.
  • Formulas can be written without space rows between themselves.
  • Import of Jpeg (*.jpg) files.
  • Error messages upgrate.

New in RedCrab 3.00.01 (Jan 11, 2011)

  • New user interface
  • New panels for numbers, operators an functions. Now you can use the mouse for most inputs.
  • Images are saved at compressed bitmap. This reduce file size up to 94% .
  • AC – Clears the mathematical expression at cursor position.
  • Programmer Functions:
  • AND - bitwise AND
  • OR - bitwise OR
  • XOR - bitwise XOR
  • SHL - bitwise shift left
  • SHR - bitweise shift right
  • NOT - bitwise negation
  • INCL - adds a bit to the integer operands
  • EXCL - exclude a bit from the integer operands
  • TRUNC – operands value are rounded toward zero
  • Function names will not distinguish between upper and lower case. Valid now
  • e.g. SIN, sin or Sin.
  • Error fixed in TextToImage.

New in RedCrab 2.10.00 (Nov 1, 2010)

  • User interface upgraded, undocked function panel.
  • In- and output of hexadecimal numbers.
  • Handling of fraction lines upgraded.

New in RedCrab 2.00.00 (Jun 29, 2010)

  • New user interface
  • New Undo / Redo module with extended functions. Undo stores all changes of
  • text / image boxes, grid on / off , font size,etc.
  • No limit by size of text boxes
  • Previous editing error of multiple roots now fixed.

New in RedCrab 1.40.00 (Jun 16, 2010)

  • The format of mathematical expressions is now more flexible. You can write
  • your formula with any format at any editor position. Example: 17+4, or 17+4=, or x=17+4, or x=17+4=. Toggle between single and extended mode exist no longer.
  • Several improvements for better handling of text and image boxes :
  • Text and Images boxes are now deleted with Delete on a pop up menu (click on right mouse button). The area to draw the text boxes is now displayed with a NW- mouse pointer. The pop up menu selections are saved to the data files.
  • Delete box is disabled if Page Lock is enabled.
  • Select text boxes font with pop up menu.
  • New:
  • Clear selection with Ctrl + Delete key.
  • The Clear function are now confirmed with a message box, instead the Enter
  • button.
  • The handling of Insert and Delete with Undo / Redo are improved.
  • Error fixed:
  • Problems with Paste of space signs from external files are fixed.
  • Previous Insert and Delete move multiple rows simultaneously is now fixed.

New in RedCrab 1.33.40 (Jun 1, 2010)

  • Superscript / Subscript mode disabled if you enter a non alpha numeric sign.
  • Same thing if you select cells.
  • key enable / disable Superscript mode
  • key enable / disable Subscript mode
  • If Superscript / Subscript is activated when the cursor is on a character, the
  • character under the cursor changed from normal letters in superscript / subscript.
  • As described above you can change selected cells to superscript / subscript or
  • reset.
  • It's now possible to select Unlock Cell, if Page Lock disabled.
  • The underscore of selected unlocked field is displayed as well, if Page Lock is
  • disabled
  • Error fixed
  • Insert Row was blocked, if cells selected by Unlock Cell
  • The file name in the headline was cut, if the file name includes non alpha
  • numeric symbols.

New in RedCrab 1.33.30 (May 23, 2010)

  • Insert, Delete and Paste function upgraded and previous problems solved.
  • Fixed cell size if the grid on/off function is switched
  • RedCrab saves the setting of Grid on/off current worksheet and reset it if the file is reloaded.

New in RedCrab 1.33.00 (May 6, 2010)

  • Upgrades:
  • Upgrade the compatibility of older Windows* XP Systems (SP2 or older). Previous problems with access to Windows registry (program finished) and display of space sign now solved.

New in RedCrab 1.31.00 (Apr 9, 2010)

  • New Features
  • Menu to search online for updates.
  • Upgrades
  • Save user preferences in windows registry.

New in RedCrab 1.30.00 (Mar 15, 2010)

  • New Features:
  • You can now print a whole page or a certain selected area.
  • Upgrades:
  • Previous problems with save of textboxes now solved. Previously it
  • could happened that the textboxes lost their format settings when the
  • page saved.

New in RedCrab 1.22.00 (Mar 4, 2010)

  • Format of the cells was changed to improve the compatibility and representation on printers. (printer functions are available from version 1.3 / end of March 2010 ).
  • Display revised: problems with the display of the grid, especially on Windows 7 have been corrected.

New in RedCrab 1.21.00 (Feb 16, 2010)

  • Extension of front size to 512 pixel possible.
  • Display of symbols upgraded.
  • Previous problem with copy and paste of Integral symbol solved.

New in RedCrab 1.20.00 (Jan 17, 2010)

  • For calculation an area of a curvilinear region

New in RedCrab 1.10.00 (Dec 22, 2009)

  • New Features:
  • Copy and insert data within RedCrab or from/to external programs.
  • Paste To Box imports images or formatted text from external programs into a freely positioned box.
  • Cut and Paste selected data.
  • Deletes selected data.
  • Load text files into freely positioned boxes.
  • More Upgrades:
  • New display unit for results.

New in RedCrab 1.01.10 (Dec 9, 2009)

  • Error fixed regarding negative exponent.

New in RedCrab 1.01 (Nov 29, 2009)

  • New Features:
  • Page Lock - With Page Lock on the menu Extras, the editors page will be blocked for additional entries. This function protects unintentional changes made. For data input the cells can be unlocked with Unlock Cell.
  • Unlock Cell - With Unlock Cell on menu Extras marked cells in a locked page (selected by mouse), are unlocked for data entry . The unlocked fields are marked with an underscore.
  • DIV - The DIV operator returns the result of a integer number division without remainder. If there are floating point numbers are entered, the DIV operator cuts the digits after the decimal point before executing the division DIV.
  • Example:
  • 11 DIV 3 = 3
  • 11.3 DIV 3.9 = 3
  • MOD - The MOD operator returns the remainder of the division of two integer numbers. If there are floating point numbers are entered, the MOD operator cuts the digits after the decimal point before executing the division MOD
  • Example:
  • 11 MOD 3 = 2
  • 11.7 MOD 3.9 = 2
  • More Upgrades:
  • With Save and SaveAs now the font and cell size are saved .
  • Handling of file Save and SaveAs improved.
  • Display of error messages improved.
  • Rounding errors in the display of result for values around zero were eliminated.
  • Bitmap object positioning improved.