Find the element from matrix which is in 2nd row and 3rd column.
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.
Sum the numbers on the main diagonal
Do Fast Fourier Transformation
Switch matrix to a column vector
Fibonacci-Sum of Squares
Compare two input matrices
modulus of a number
Find remainder when x is divided by 3
Calculating selling price
Determine whether the input is divisible by 3 as well as 5
Find the last digit
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