solution is incorrect
Not really, we need to determine the first non-zero element in each column, not row.
Permute diagonal and antidiagonal
We love vectorized solutions. Problem 1 : remove the row average.
Number of digits in an integer
Compute Fibonacci Number
Find the elements of a matrix according to a defined property.
Create a matrix X, where each column is a shifted copy of the vector v
Duplicate each element of a vector.
A quadrant matrix
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