MATLAB: Write a function that takes one input, an integer number n, and returns a matrix that is nxn, where the value of each number is the distance from the upper-left to bottom-right diagonal. Numbers below the diagonal should be negative, and numbers above the diagonal should be positive. For example, if your input was 5, your output would be: 0 1 2 3 4 -1 0 1 2 3 -2 -1 0 1 2 -3 -2 -1 0 1 -4 -3 -2 -1 0