Back to basics 8 - Matrix Diagonals
Get the elements of diagonal and antidiagonal for any m-by-n matrix
Detect a number and replace with two NaN's
Area of an equilateral triangle
Wayfinding 5 - Travel contour
Power supply: 230V to 115V
Operate on matrices of unequal, yet similar, size
Convert a substructure reference string into a valid definition structure for subsref and subsasgn
Wayfinding 4 - Crossing, level 2
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