Some interesting sidelights:Model the crab problem as an M\M\k\1. Mathcad has the employee optimization in their Expert Solver. Use Mathcads logistic solver recast to solve catastrophy problem, very interesting. Redo Beltrami's bessel solution for diffussion using Mathcad for Spherical Bessels, then reformulate to show nodes, then set Frame function to show actual growth in 3 dimenstions. All in all really enjoyed and can't wait to get his next.
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