You have to create a zero matrix of size (mxn) whose inputs are m and n and the elements of your matrix should be zeros.
If input is m=2 and n=3 then
A = [ 0 0 0
0 0 0 ]
Find the numeric mean of the prime numbers in a matrix.
Extract leading non-zero digit
Set the array elements whose value is 13 to 0
07 - Common functions and indexing 2
Sum of odd numbers in a matrix
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