Test if arguments of the function are all variables (workspace variables names).
Return 1 if yes, 0 if no.
For example :
length!! and not "not isempty"... good point!
Swap the first and last columns
Sums with Excluded Digits
Back to basics 18 - justification
Getting the absolute index from a matrix
Matlab Basics - Rounding I
Find indices of diagonal elements
Mirror, mirror on the wall, who is fairest of them all?
Numbers spiral diagonals (Part 2)
Permute diagonal and antidiagonal
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