better to describe input size: xy 4-by-2, each row is the xy-coordinate of a point
Needs a richer test suite. A lot of "solvers" have just put a=7 as the "solution", but although this satisfies the single test case, it doesn't solve the problem as stated.
This could be quite a good solution, if you removed the "x = 7; %" part and just left what is now a comment. As it is, although it satisfies the test case, it doesn't actually solve the problem.
... though, just to be clear, the comment wouldn't be quite right, it still needs a little adjustment.
Replace multiples of 5 with NaN
Switch matrix to a column vector
convert matrix to single column
03 - Matrix Variables 4
Dimensions of a rectangle
Dancing with wolves?
Have you seen any Spindromes recently?
Multiply a column by a row
Compress strings (not springs)
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