At a minimum, you should make this problem variable. For example, find the element at the ith row and jth column and define i and j in the test cases, which are passed along with the function.
Getting the row and column location from a matrix
03 - Matrix Variables 5
Area of a Square
Divide by 4
Determine whether the input is divisible by 3 as well as 5
multiply an array by its position number
find the mean of all elements in a matrix
modulus of a number
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