I have the bureaucracy equivalent of that story. The year I took the AP Calculus exam, TI-83s and such were allowed, but the TI-92 was not allowed because it c

I have the bureaucracy equivalent of that story. The year I took the AP Calculus exam, TI-83s and such were allowed, but the TI-92 was not allowed because it could do symbolic calculus, and that was like half the exam. The exam administrators chose to describe the rules as "QWERTY keyboard calculators are not allowed." The year I took the AP Calculus exam, the TI-89 came out. It did not have a QWERTY keyboard but it did have a symbolic solver. I didn't have to write any programs; I just had to read the rules for the test and buy the right calculator.