Covering some basic topics I haven't seen elsewhere on Cody.
Given an input vector of numbers, output a square array with the vector as the main diagonal and all other elements = 0.
1 0 0 0
0 2 0 0
0 0 3 0
0 0 0 4
Equal to their cube
Side of an equilateral triangle
Is this triangle right-angled?
Back to basics 24 - Symbolic variables
Back to basics 14 - Keywords
Better bullseye matrix
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