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.
letter yes yes & letter no no
Determine Whether an array is empty
Return 'on' or 'off'
Swap two numbers
Calculate a modified Levenshtein distance between two strings
Check if vertices form a rectangle
Check if a directory is on the current MATLAB search path
Calculate the Hamming distance between two strings
Convert matrix to 3D array of triangular matrices
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