Given an input element x, and the dimensions, (m, n) return a matrix of size m x n filled with element x.
Input: repl_mat(2, 2, 5)
Output: [2, 2, 2, 2, 2; 2, 2, 2, 2, 2];
Which values occur exactly three times?
Project Euler: Problem 6, Natural numbers, squares and sums.
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Find a subset that divides the vector into equal halves
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Determine the number of odd integers in a vector
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It's race time again! Write a function that is at least twice as fast as the test suite call of repmat().
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