[peter_l_downs]

Lucky you! I'm the only one in my BC Calc class with an 89; everyone else has an 84, to which the teacher teaches.

[ohgodthecat]

At least integration is easy to do on the 89, I wasn't taught it and had to figure out how to do integration for the calculator section of one of the AP exams (BC or AB) on a ti 86 as our teacher did not teach us how to use our calculators at all.