calculus calculator

[kashiark]

Wolframalpha.com is a really good one. It looks like a search engine, and to find the derivative, type in d/dx(function.) To do antiderivatives, you need the symbol ∫. For limits use lim(function) as x->whatever.

[thrill3rnit3]

I found some errors in it doing simple antiderivates.

[qntty]

For antiderivatives you can just type "antidifferentiate f(x) dx" or "integrate f(x) dx"