Take the first column from matrix a, then insert the first column from matrix b, and so on. For example:
a = [1 2 3 4];
b = [5 6 7 8];
c = [1 5 2 6 3 7 4 8];
The problem description and title have been improved while the test suite has been expanded to include matrices (not just vectors).
Flip the main diagonal of a matrix
Are all the three given point in the same line?
Change the sign of even index entries of the reversed vector
Find the dimensions of a matrix
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