Quote by Coldie
Does anyone know of a good, preferably flash or htmlbased antiderivative calculator? I'm on a Mac and can't run any windows executable file.
And if not, would someone please tell me the antiderivative of tan?
[edit]
I'll just give the problem I'm working on. I'm trying to find the integral.
[tex]
\int_{0}^{\pi/4}\frac{1 + \cos^2\theta}{\cos^2\theta}d\theta
[/tex]
Subbing in [tex]\sin^2\theta[/tex] for [tex]1 + \cos^2\theta[/tex], I get [tex]\int_{0}^{\pi/4}\frac{\sin^2\theta}{\cos^2\theta}d\theta[/tex] , which I simplified to [tex]\int_{0}^{\pi/4}\tan\theta d\theta[/tex]
Assuming I'm correct up to this point, all I need is the antiderivative of tangent to complete the problem.

Yes,i meant that definition.
Wow,there are a lot of mistakes in what u did up there...First of all,u need to understand that
[tex] \sin^{2}\theta\neq 1+\cos^{2}\theta [/tex] (1)
Split you integral into two simpler ones...
Daniel.