Thanks for the fun problem!
So compact! I didn't know about arrayfun and cellfun. Very useful functions.
Took a couple of tries, but I got it! :)
Specific Element Count
Spherical radius given four points
Generate pi using logarithm
Min of a Matrix
Length of a short side
Moving Product (Easy)
Hankelize a matrix
Toeplitize a matrix
String Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values
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