Hello, Said BOUREZG. You do not have N×N matrices in every case, so it would be accurate to describe them as "N×M matrices". Or just "matrices". —DIV
Column norms of a matrix
What's Your BMI?
Magic is simple (for beginners)
Check that number is whole number
prime test 2
Stop a ZigZag scanning N*N Matrix at any diag you want
Even or Odd
Hilbert Scan Algorithm
Find my secret function IV
Divisible by 21
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