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.
pressure to dB?
Back to basics 20 - singleton dimensions
Sum the Digits of a Number
construct matrix with identical rows
Rotate Matrix @180 degree
Return elapsed time
Assign matrix rows/columns to separate variables
Change a specific color in an image
The Python Challenge, Level 1: Decode strings
Connect Four: find winning move
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