phoc is a programmable calculator, which stand for Programmable Hign-Order-Calculator, and powered by script language, currently is JavaScript. But it's may language-independent, I'll add python later to pcalc.

phoc is look like this:

Expression evaluation

phoc can of course do the normal compute such as expression evaluation: (1+2)*8/6 sin(PI)*cos(PI/2)

Define functions

also, phoc can support user-defined function, such as: function add(x, y){ return x + y; } add(3, 5) or ``` function sum(){ //code to calc sum }

sum(1, 3, 34, 566, 57, 6, 7, 78, 787) ```

Plot function

and phoc can plot those functions too. such as: plot2d(sin, {start:-PI, step:0.1, stop:PI}) will draw the function sin in the range(-PI, PI), step is 0.1.

I using the jmathtools library in phoc. You can check it out here: http://jmathtools.berlios.de/doku.php?id=start, jmathtools is awesome. You can download them from http://code.google.com/p/jmathplot/.