Hi! I'm not sure what to exactly but in a biography. I'm a first year uni student studying engineering. I'm no longer allowed to use graphing calculators for exams (I was allowed at school) so I thought now is as good of a time as any to hack on them. I'm not particularly experienced with them. I have two TI-84+, one of which is broken, and a TI-Nspire CX CAS.