I'm sick and tired of functions right now at school, so i've written a small application that graws graphs and can be used to solve equations with one variable. It can draw up to 9 graphs at the same time and it's main feature is function interpreter that reads a function out of string (i need it since lite-c doesn't have execute() function). Everything is drawn with standart GS drawing commands, no bitmaps.
My next goal is to add algorythm that calculates the derivative of the function

I hope somebody may find this version useful

http://files.filefront.com/GraphX+v1ENrar/;9607827;/fileinfo.html