Watch out! Martix size!
This works in Matlab but not here? It fails on Test 3, but when I use the same value of x and the same function in Matlab it works...
Your output y is a row vector (or scalar), but in 3'rd test it should be a column vector. Predefine y first with the same size as x.
good solution
381 Solvers
Project Euler: Problem 6, Natural numbers, squares and sums.
1035 Solvers
Getting the indices from a vector
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Test if two numbers have the same digits
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