Very creative usage of blkdiag in collaboration with conv2. I prefer nnz over "any" for speed and compactness.
Right and wrong
Choose the best fitting dominoes
Replicate elements in vectors
Return area of square
Dimensions of a rectangle
Triangular matrices in 3D array
Numeric array to cell array of strings (easy)
Assign matrix rows/columns to separate variables
Create cell array of strings
Convert ColorSpec string to RGB triplet
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