... combinatorics, a sort of glorified dice-throwing.

Sometimes in studying Ramanujan's work, [George Andrews] said at another time, I have wondered how much Ramanujan could have done if he had had MACSYMA or SCRATCHPAD or some other symbolic algebra package.

Pi is not merely the ubiquitous factor in high school geometry problems it is stitched across the whole tapestry of mathematics, not just geometry's little corner of it. Pi occupies a key place in trigonometry too. It is intimately related to e, and to imaginary numbers. Pi even shows up in the mathematics of probability