Additional test cases have been added.
A nice opportunity to use toeplitz :)
Test suite really needs more test cases!
Replace NaNs with the number that appears to its left in the row.
Rotate input square matrix 90 degrees CCW without rot90
Generate a vector like 1,2,2,3,3,3,4,4,4,4
02 - Vector Variables 3
Find the elements of a matrix according to a defined property.
vectorization in N
A quadrant matrix
Duplicate each element of a vector.
Remove NaN ?
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