Convert the input to a cell array, but only if necessary.
If the input is a numeric array, return a 1-by-1 cell array containing the input. If the input is a cell array of numeric arrays, return the input unaltered.
Back to basics 20 - singleton dimensions
Make a 1 hot vector
Fahrenheit to Celsius converter
Find the square of the sum of the digits of a number
The Python Challenge, Level 1: Decode strings
Convert matrix to 3D array of triangular matrices
SET (the card game)
Extra safe primes
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