For given input matrix a, rotate it by 90 degrees and find the sum of the diagonals.
1 2 3 4
5 6 7 8
8 10 12 -2
-1 -3 -5 -7
Replace Vector Elements
Matrix with different incremental runs
matrix of natural number
03 - Matrix Variables 1
Remove white spaces at the end of the input string
convert the number to binary format & count digits
Find NaNs in the matrix
Percentage of zeros in a matrix of only 1s and 0s
count upper and lower case characters
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