Just find the number of columns of the given matrix.
x = [1 2
y = 2
Maby this one needs some more test suites ;)
improve test suit
Maybe more test cases here? ;-)
Remove the polynomials that have positive real elements of their roots.
Remove NaN ?
Back to basics 17 - white space
Make a run-length companion vector
Reverse a matrix
Concatenate two strings
Find the square of the sum of the digits of a number
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