What is the distance from point P(x,y) to the line Ax + By + C = 0?
Permute diagonal and antidiagonal
Doubling elements in a vector
Length of a short side
Rotate Matrix @180 degree
Calculate the sum of elements of n*n Hilbert matrix.
Compare two strings.
For given vectors x,y find coresponding spline coefficients.
Sum positive elements of matrix.
Find the sines of an isosceles triangle when given its area and height
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