Mathcad Case Study - When is a goal not a goal? Mathcad measures up


Disputed goals are a major headache in professional football. This new white paper by Dr Ken Bray, the Bath-based theoretical physicist, looks at one particular type where a ball, bouncing on the ground after its impact with the crossbar, spins back into play. He has recently conducted a series of experiments, using a ball-launching machine and a high-speed digital camera, to show how this sort of "reverse rebound" can happen. The work involved some pretty intensive computations and it was Mathcad's robust handling of simultaneous equations that, in Dr Bray's words, made "very short work of the process".

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