You all know how we love to tinker with applications. How about Grapher? I'm doing that as we speak. I have this frikken equation that is going take over an hour (90 minutes now) to figure out the Implicit surface. If you know Integration, you'll understand this, here's the equation (its 3d by the way): z = the integral from -x to y dy (3z^3 - 2 sin^3 (x+tan(y))-18xy) Think of other fun equations - this would be good for a CPU test/Burn in.