Problem 42675. Get all corner elements from a matrix where dimension of matrix is always equal to or greater than 2.

kunal

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if a given matrix a = [1 2 3;4 5 6]; so answer is going to be [1 3;4 6]

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Last Solution submitted on Feb 10, 2026

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Carl Witthoft on 11 Nov 2015

Sans test cases with rank 11 (or even 3), it's too easy to provide a solution which passes the test but fails for, say, dyadics. Or did the originator really mean to stick with tensors (rank 2) of arbitrary x and y dimension?

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