Display positive elements of matrix.
Project Euler: Problem 6, Natural numbers, squares and sums.
Side of an equilateral triangle
Matlab Basics II - squares
If you have matrix A, create matrix B using matrix A as an "element"
Sum positive elements of matrix.
Pointwise multiplication of vectors.
Form a square matrix from four square sub-matrices
Find cosine between two given vectors u and v.
Find Euclidean norm of given vector u.
Find product of eigenvalues of n*n magic matrix.
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