MIDP Graphing Calculator - A graphing calculator for Java MIDP cell phones.
It actually implements a small programming language, parsing expressions into trees. One can define functions with an arbitrary number of parameters, and use the functions in java.lang.Math in addition to the normal operators.
Some statements to try out in the prompt:
* Plot f – plots the function f
* Plot f(x)=expression – defines a function on the fly and plots it
* Plot sin,cos,tan,f(x)=x^2 – plots each of these functions
* Let x = expression – Define a variable
Note that you can tweak what region is plotted by setting the variables Xmin, Xmax, Ymin, Ymax.
You can also do switch statements, as in:
switch (x) {
1: 1
default: 0
}
There are also cond statements (à la lisp COND), but currently there is no support for = or < operators, making it kind of useless.
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Supported operating systems:
Java ME, Java Nokia 240x320, Java SE 240x320
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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
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