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Apply TodayGiven 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)

117 correct solutions
119 incorrect solutions

Last solution submitted on Jul 21, 2016

1 player likes this solution

1 Comment

Jean-Marie Sainthillier
on 9 Feb 2014

First time I see this notation.

1 Comment