Find all values in a vector lower than the mean of the vector
I suggest adding additional test cases to make the problem stronger.
Find the sum of all the numbers of the input vector
Swap the first and last columns
The Goldbach Conjecture, Part 2
Sum of series I
Matrix Max Finder
Find the index of the lowest number in a matrix
Matrix Ax=B problem
Check if inputted variable is a string or a number
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