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Pascal's triangle, Golden Ratio, Measuring pi
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Online lecture from 1/19/2022. Sundry proofs, chosen to illustrate recurring ideas and themes. I had prepared 11 examples, and we got through 8 of them. Also included some general comments on…
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David Glickenstein: Discrete conformal geometry and adversarial examples of neural networks Abstract: Discrete differential geometry is a field that uses the ideas and techniques of differential…
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Geometry of portfolios. Minimum-variance line (curve). mat133-2021s-notes-2021-06-02.pdf 3D graphics: hw6B_3D_1_X=6_Y=8_Z=0.html hw6B_3D_2_X=6_Y=8_Z=0.html Videos and all other materials are…
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Archetypal analysis is an unsupervised learning method that uses a convex polytope to summarize multivariate data. For fixed k, the method finds a convex polytope with k vertices, called archetype…
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