Given a size and x,y coords will return the value from a number spiral.
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Spiral Matrix function for Ulam Spirals

The main function ulam([x,y], dimention) generates a spiral matrix of width and height -> dimention, and tells you what the value is at position x, y in that matrix. Note that 1,1 is in the top left corner of a matrix. See [Ulam Spiral rectangular grid construction] ( for more details.

This was mostly a mental exercise.