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Sep
24
awarded  Autobiographer
Sep
11
comment Working out an algorithm for finding out whether a point is in or outside of a 2D closed polygon
@MBennett Good point. It's not necessarily convex. Still, I think many of the ideas that handle the convex case are applicable, so I'll leave this flawed answer up in case it helps. Thanks for the catch.
Sep
11
answered Working out an algorithm for finding out whether a point is in or outside of a 2D closed polygon
Aug
31
awarded  Yearling
Jan
26
answered Counting (Number theory / Factors)
Dec
3
answered recursion need a closed form
Nov
17
comment Reverse a mathematics calculation
Do you mind sharing the origin of this problem? It's very ill-posed, so I'm curious as to how it arose.
Nov
17
answered Reverse a mathematics calculation
Aug
31
awarded  Teacher
Aug
31
answered How to calculate the x/y coordinate of F in this diagram (geometry)