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
The Goldbach Conjecture
Omit columns averages from a matrix
sum of first 'n' terms
05 - Vector Equations 3
Replacing a row
Sum of unique multiples of 3 and 5
count upper and lower case characters
Percentage of zeros in a matrix of only 1s and 0s
function to compute root mean square of first nn positive odd integers
Return median of a matrix
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