In episode #281 Casey was determining the equation for affecting the z-value of the camera offset when the character transitions between rooms. He was using Google for this which works fairly well for a quick equation but falls short when trying to modify one or more constants in the equation. Instead of having to plug the constants in each time by hand it is much easier to use Wolfram Alpha for this. In the case of Ep 281 one could type in

graph a*t^2 + (1 - a)*t where a = -1
and be able to easily tweak the a value and see how it effects the graph.

Just thought I'd throw that out there!