RedCrab Calculator
 

 

News and Tips of RedCrab Calculator


News

 

Usefull handling tips


A new internet server requires update to version 6.36

The move of the Internet server required some adjustments in communication with RedCrab. For the online registration of RedCrab PLUS and the complete function of the online help with the F1 key or the right mouse button an update to version 6.36 is required.
30. Aug. 2018


Changing of the server from http to https

The web server was changed from http to https with SSL encryption this week. To unlock RedCrab-PLUS subscriptions and time-limited licenses RedCrab version 6.29.2 or higher is required.
02. Mar. 2018


RedCrab Update Version 6.29.2

Cumulative update with new features, bug fixes and improvements s available for download.
02. Mar. 2018


RedCrab Update Version 6.29.1

Cumulative update with new features, bug fixes and improvements s available for download.
27. Feb. 2018


RedCrab Update Version 6.29
Email registration simplified and mode fixes and improvements and fixes.
16. Feb. 2018


RedCrab Update Version 6.28

Starting with version 6.28, there is a new procedure for testing the full version of RedCrab PLUS. All functions can be unlocked with a code for 24 hours. The code can be requested several times. This means that they do not have a one-time trial period of 30 days as before, but can unlock the functions on a daily basis over a longer period of time as needed.

For more information and the activation code, click at the top on the menu Try it for free
05. Feb. 2018


New in the tutorial

Calculation of matrices for row operations and geometric reflection 
08. Jan. 2018
New in the tutorial

Description about calculation of matrices and simultaneous equations 
05. Jan. 2018
RedCrab Update Version 6.26.1 is online for download
More informations here
03. Jan. 2018
New in the tutorial
Description about Vectors and Vector calculation 
29. Dec. 2017
New in the tutorial
Description about Electrical Engineering 
27. Dec. 2017
New in the tutorial
Description and formulas about spherical segments and sectors  
22. Dec. 2017
New in the tutorial
New Description about roots and power
21. Dec. 2017
RedCrab Update Version 6.26 is online for download
More informations here
21. Dec. 2017
New in the tutorial
New Description about complex numbers and polar coordinates.
20. Dec. 2017
New in the tutorial
Description of complex numbers expanded by conjugates and divisions.
18. Dec. 2017
New in the tutorial
New Geometry descriptions and formulas about Spheres, Cones and Pyramids
15. Dec. 2017

New in the tutorial
New Geometry descriptions about lines and segments in triangles
10. Dec. 2017

New in the tutorial
Descriptions about mathematical basics
04. Dec. 2017

RedCrab Upgrade Version 6.25 Alert
In RedCrab version 6.25 until 31.12.2017
all functions in freeware mode available !
29. Nov. 2017
RedCrab PLUS subscription from $ 1.50 / month
From version 6.21, the shareware license can be purchased as a monthly subscription. read more... 
24. Sep. 2017

In version 6.14, with Insert and Delete keys, rows on the worksheet can be inserted or deleted (previously only possible on frames). In addition, the functions of the Home, End and Enter keys are improved.

More informations here.
10. Jul. 2017



In version 6.13, the handling is improved by new pop-up menus.
For easier handling, a separate frame is assigned to each mathematical term from version 6.14 onwards. Files in the old format will be processed as usual.
22. Jun. 2017


In RedCrab version 6.10 the function Surface is integrated to draw 3D surface and wireframe models. The use of surface reference variables in the older versions is no longer supported as of version 6.10.
08.02.2017


RedCrab version 6.7 has an integrated plot function. The plot function can draw function graph and other 2-D plots.

The allocation of the reference variable for chart boxes and labels has been simplified.
13.12.2016

Expanding RedCrab through you own programs

Starting with version 6.4 RedCrab includes an integrated application interface (API) to communicate with other programs. Through the API, you can perform calculations in external programs on the same computer or on different computers in the network. External calculations can be performed parallel to accelerate. You will find more information here.
01.11.2016


RedCrab Calculator VI

Version 6.0 is available for download. All shareware licenses for version V, that have been acquired since June 2015 are valid also for version VI.
17.08.2016
Starting with version 5.7, RedCrab works with complex numbers and complex variables.

The usual rules for real numbers can be applied to complex numbers. All trigonometric and logarithmic functions and the functions »Abs«, »Power«, »Sqrt« and »Sqr« work with complex numbers.

Additional functions for complex numbers are Re, Im, Phase, Magnitude, FromPolar and Conjugate.
22.02.2016



 

Interactive online help

The interactive online help gives you direct access to the description of the mathematical functions.

Place the cursor on the function name, press F1 key. The description of the function is displayed in the browser window.

Click the menu ribbon or function buttons with the right mouse button for help. The internet browser displays the the description.


Importent short keys
  • Fraction line: 2x slash ( // )
  • Root: Ctrl + 1
  • Exponent 2: Ctrl + 2
  • Exponent 3: Ctrl + 3



           
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