# 3D Graphing Software

Does anyone know where I can find free 3-Dimensional Graphing software that can graph spherical coordinates (i.e. $$\rho=f(\theta, \phi )$$)?

http://www.dpgraph.com/

gnuplot...... http://www.gnuplot.info/

This one works... thanks.

I hope I'm not asking for too much but... Does anyone know of a free 2D graphing program that can graph non-elementary functions (i.e. ones that include limits, indefinite integrals, etc.)?

Dr Transport