There was this numerical calculus class at Uni where the teacher forbid us to use the calculator. So I just programmed the integral on it, got the partial steps

There was this numerical calculus class at Uni where the teacher forbid us to use the calculator. So I just programmed the integral on it, got the partial steps, and just wrote random numbers to fill the the substeps. Got full grade :D The other case everybody got to pass the class, but after vacation we found the stack of exams completely untouched under a desk. The teacher had a side business to run...