Graphing equations

[karma]

Hi,

im in the middle of producing a program in which quadratic, cubic and even any polynomial graph can be sketched by entering the equation into a text box. However, i am clueless asto how to go about coding. Could you guys assist me with the code needed to produce a basic y = x^2 graph?

thanks

[Doddddy]

as you could posibly tell, it is impossible to calculate a perfect equation shape... and even if you could it would still not look perfect on screen (due to limited pixel system).

so what you do is take some x values and calculate the y for them... then link those points you found with lines, so it looks like a graphic...


i dont understand if you wanted to know that, or how to read the equation from a textbox, cause that is much harder... you need some kind of compiler of your own... a good start is to transform this kind of equation:

a+b-c*x+y/z

into this kind:

+a+-b*cx/yz

... hope you understand what i mean...