complex math

[anothen]

which one of the codes can I use to make complex mathematical computations?

[nkaisare]

Is this what you are looking for?
http://www.w3.org/Math/

It does nott do complex math computations for you, its a way to display complex math formulae in an HTML (or MathML) page. Never used it myself.

[anothen]

okay, let me explain.

I am a radius technician for a construction contractor. I build radius and curved walls.
I use this formula to plot points for a radius (r^2=a^2 + b^2). Currently I use Excel to calculate it, I need a more user friendly method.
If there is a HTML type of code I can use to calculate, it would be more convienient.

[Jona]

If I'm not mistaken, you want 3 form boxes, a button, and another form box below it. The variable r is equivalent to the first form box's value, the variable a is equivalent to the second form box's value, the variable b is equivalent to the third form box's value. When you click the button, the last form box below it has the answer to that calculation?