All output is textual.
Suppose the user has an application that uses inverse matrices for computations. The application first finds the inverse of a given matrix, and then performs further calculations. If the inverse matrix is computed incorrectly, the rest of the computation will also suffer. If the inverse is correct, the output would indicate that no mismatches had been found. Instead, the o utput lists a total of 3600 mismatches, signifying that all elements of the 60x60 matrix are incorrect.