My high school roommate bought a TI calculator keyboard to efficiently type in formulas/notes before exams - probably the best investment he made. I remember p

My high school roommate bought a TI calculator keyboard to efficiently type in formulas/notes before exams - probably the best investment he made. I remember programming a basic quadratic equation solver at the end of a math exam sophomore year, because I had extra time and had already checked the test once. I didn't find any mistakes, but I wrote out the code on the back of the test and got an extra credit point :). I'm torn, because although TI calculators are pretty undeniably a sinkhole of innovation and unnecessary to most students, I loved (still love) mine so damn much. I'd rather have them update the system and their prices (which if anything have risen on the same models since I was in high school) than get them out of schools entirely. But maybe that's just nostalgia thinking for me.