Mathematical software

1. Apr 19, 2006

bomba923

Do you guys know of any free online programs/calculators that can graph in 3D? Or, any site where I might download such a program?

In particular, I'm looking for a program that can graph
$$z = \int\limits_0^{2\pi } {\sqrt {1 + \left( {xy\cos xt} \right)^2 } dt}$$

(basic x,y,z coordinates)

2. Apr 19, 2006

Hash

3. Apr 19, 2006

neutrino

Do you want to plot a graph or evaluate an integral? For the former you need a plotting software such as gnuplot. A CAS(Computer Algebra System) , such as Maxima, is used to solve integrals analytically, among many other things. Maxima doesn't plot on its own and therefore comes bundled along with gnuplot. Both softwares can be downloaded free of cost.

4. Apr 23, 2006