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English
XCalc v. 1.6.9 Product Name:
XCalc v. 1.6.9
Platforms:Java (J2ME) 
GetJar Rank:454 Suggest a feature
Product Type:Freeware report not freeware | confirm freewareWrite a review
Date Added:2006 May 2Report a problem
Date Updated:2007 Jun 15 
User Rating:8.87 (138 votes)
Total Downloads:288,938 (880 last week) 

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About

I have written this calculator with 2d and 3d plot function as student project. Feedback with comments is welcome. You can contact me at peirick AT gmail.com

The source code can be found on Sourceforge

Help

To input numbers use the numbers on your telephone, "#" inputs a point. To input operators or functions press "*". The position of the functions on the screen maps to the position on your mobile phone keyboard.

You can draw a graph if the formula contains an "x" or "y" and your press Calc.

To navigate in the graph press "2" and "8" for up and down and press "4" and "6" for left and right. Or press the corresponding up, left right, down key of your mobile.

To scale the graph on the y-axis press "3" for zoom out and "9" for zoom in. For zooming on the x-axis press "1" and "7". It is also possible to change the scale of the axis in the options menu.

To leave the graph window press "*" again.

The functions sin, cos, tan, ... uses as default radians as input values. You can change the trig-function mode in the options menu to radians, degrees or grad.

Version History

1.6.9
  • Graph plotting can now be interrupted
  • Progress of plotting is shown
  • More functions added
  • + and - can be selected through up and down keys
1.6.5
  • The History can now be accessed without a numeric keypad
  • Minor bug fixes
1.6.0
  • Colors of the interface can be changed through choosing a Theme in the options menu
  • Labeling of the axis’ can be turned on or off in the options menu
1.5.5
  • History of formulas is shown in an extra menu
  • Old formulas can only be chosen from the history menu
  • Caching to speed up drawing of a graph during scaling
1.5.0
  • History of formulas is saved
  • Possibility to choose an old formula with up and down keys
1.4
  • Added missing e function
  • Added functions P and C for Permutations and Combinations
  • Up, down, left, right keys can be used to navigate in the graph window.
  • Added support for Sony Ericson clear key
  • Now it’s possible to switch with down key to privios menu
1.3.4
  • Changed Math menu to support touchscreen phones (only tested on an emulator, feedback is welcome)
  • Changed structure of Math menu
  • Number of Points to draw could be set
1.3.2
  • Width and Height of the Graph can be set in options menu
  • There can be chosen between Rad, Deg or Grad mode for trigonometric functions
1.3.1
  • Speed optimisations
1.2.0
  • First public version

This calculator contains an Easter egg :)