Sum of diagonals elements of a matrix - MATLAB Cody - MATLAB Central

Problem 2094. Sum of diagonals elements of a matrix

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Given a matrix, return the sum of all the elements across the diagonals.

E.g. A = [1 2 3; 4 5 6; 7 8 9;]

then, sum = 25 as sum of (1, 3, 7, 9,5)

Solve

Solution Stats

40.36% Correct | 59.64% Incorrect
Last Solution submitted on Dec 03, 2024

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Primes and Rough Numbers, Basic ideas
What is a rough number? What can they be used...
John D'Errico in Tips & Tricks
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