Very creative usage of blkdiag in collaboration with conv2. I prefer nnz over "any" for speed and compactness.
Convert String to Morse Code
Spot the rectangle
Rotate a Matrix
BULLSEYE Part 2: Reference Problem 18 BULLSEYE
Create cell array of numeric arrays
Triangular matrices in 3D array
Maximum of each diagonal
Assign matrix rows/columns to separate variables
Find last zero for each column
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