“Ah, Breval, la Diagonale, c’est le Diable” Richard-Paul Lohse (1) told me one day (Ah, Breval, the Diagonal, it’s the Devil). I can still remember it was in July 1979 in Austria… I can’t remember what he meant but at least I guessed this damned diagonal might have been giving him a lot of problems! From…
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Statement
First, a bit of everything… For example: Stick a one-meter square canvas onto a 99-cm square board, “then the other way round”. Systematically generate all possible triangles from ten points arranged in a 4,3,2,1 pyramid (there are 105) and keep only those that are rectangular, isosceles or equilateral, or those that ‘’lean to the right,…
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