>I also have seen students who, in essence, are merely peripherals to their >calculator. One student stopped me in class and argued that sin(pi/2) = 0. I >could not disuade him with any definition-- this is what his calculator told >him (of course it wa set to degrees).
While I'm certainly familiar with the phenomenon of students believing outrageous answers because they got them on their calculators, I have to stop and ask: huh? sin(pi/2) doesn't equal 0, even in degrees. My calculator gives around .0274.
Ted Alper email@example.com Math Coordinator, EPGY