Duplicate a character 'n' times.
Example 1: str='a' n=5
Example 2: str='*' n=3
n is a nonnegative interger.may it be the largest problem that i meet.
My initial solution with repelem(str,n) for n=0 creates a size 1x0 char class but suite only allows for a 0x0 class. Not sure why the difference would matter.
Remove the polynomials that have positive real elements of their roots.
Find out value of sine given by degree.
Find out sum of all elements of given Matrix
Insert zeros into vector
Change the sign of even index entries of the reversed vector
Symmetry of vector
Sort complex numbers into complex conjugate pairs
Moving average (variable kernel length)
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