I had a nice and crazy little Chinese professor for numbers theory in college. I never knew what he was saying, but he would tell us the questions for the exam

I had a nice and crazy little Chinese professor for numbers theory in college. I never knew what he was saying, but he would tell us the questions for the exam the day before. I asked him if I could use my ti-92+ and he said yes, so I just programmed in brute force algorithms, entered in the data, then sat back while the 10MHz processor crunched.