please fix the description
Filled with "5" not "4".
Find the sum of the elements in the "second" diagonal
Back to basics 22 - Rotate a matrix
Basics: 'Find the eigenvalues of given matrix
Create matrix of replicated elements
Remove the positive integers.
ASCII code of a leter.
Given the variable x as your input, multiply it by four, then divide it by two. Then put the result in y.
Log of a number
Corresponding letter to ASCII code.
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