Return 1s wherever there is a NaN in the input matrix
Reverse Run-Length Encoder
Distance walked 2D
Sum of diagonal of a square matrix
Sum of odd numbers in a matrix
Let's get back to school, and create multiplication tables
count upper and lower case characters
Percentage of zeros in a matrix of only 1s and 0s
Basic matrix operations using standard MATLAB commands
Raise each element to the power of its index in a matrix
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