Convert the input to a cell array, but only if necessary.
If the input is a string, return a 1-by-1 cell array containing the string. If the input is a cell array of strings, return the input unaltered.
Is A the inverse of B?
How many monitors are connected ?
Volume of a sphere given its surface area
Multiply by 3
Return elapsed time
Pentago: find winning move
Find last zero for each column
List of built-in demo images
Find mistyped words in text (mixed-up letters)
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