Find vecor x.
Remove the vowels
All your base are belong to us
Find out total non zero element of matrix
Calculate the sum of elements of n*n Hilbert matrix.
Sum the rows
Create cotangent function out of sine.
Calculate the centroid of a triangle
Find the Sum of the Series:
Find matrix of indices for multidimensional matrix.
Return ! if array element starts with a certain letter. Otherwise return ?
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