RedCrab - The Calculator

RedCrab - The Calculator

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RedCrab 3.50.23







RedCrab is a scientific calculator with a full screen formula editor. The mathematical expressions are not typed in a typical command line, but can be enter in an editor window similar to a piece of paper.
The calculator's editor supports the entry of complex algebraic equations like fractions, square roots, exponents, etc. for technical and scientific applications.

RedCrab is fully portable.


Homepage & Download: http://www.redchillicrab.com/en/redcrab/index.html



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RedCrab 3.50.30



Upgrades:
– 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.



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RedCrab 4.01.00



News in Version 4.0

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.

- improvements in details, particularly in display of chart boxes and tables.

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RedCrab 4.10
(15. 01. 2012.)



What's new:

New features for field and financial calculation (loans and investments).

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.




System requirement:

Minimum Pentium P4 and 500MB RAM.
Microsoft *Windows

Operating system: Linux with Wine runtime system


Download Arrow
http://www.redchillicrab.com/en/redcrab/index.html

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RedCrab 4.11.00



*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)].

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RedCrab 4.12



*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.

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RedCrab 4.13



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.

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RedCrab 4.14



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.

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Version 7.12
27. Nov 2019

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

https://www.redcrab-software.com/en/RedCrab/Updates

https://www.redcrab-software.com/en/RedCrab/Download

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