Below you will find complete listings of a MATLAB function M-file, and a test script for that M-file, except that at a few places in the files code has been removed.

Before the code was removed, the MATLAB function correctly calculated the value of the maximum element in a row or column vector, and returned that element. If the vector was empty, the function returned the empty matrix.

The function performEqualTest operates correctly on vector and/or scalar input, including the empty matrix, and prints out passed if its first two arguments are equal and failed if its first two arguments are not equal. It is not guaranteed to work correctly on anything other than scalar or vector input for the first two arguments.

Fill in the missing code.