The problem's figure is missing. We can use our solution for problem 1720 (https://nl.mathworks.com/matlabcentral/cody/problems/1720-do-the-lines-intersect). However, line matrices are transposed in this problem. And for the picture, we can imagine an instance of Buffon's needle problem without horizontal lines.
Swap the first and last columns
Which values occur exactly three times?
Sum of diagonal of a square matrix
Compute Fibonacci Number
Wayfinding 4 - Crossing, level 2
Wrap a vector, but insert NaN's at the wrap-positions.
Only once: cleaning up your columns
Make a KITT-scanner on the command line
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