A graphing calculator ranking between the ti-83 and the ti-89. It can solve first degree equations, find zeros of polynomials, find solutions sets to simultaneous equations, and a lot of other spiffy things. Unlike the ti-89, however, it doesn't have a Computer Algebra System (CAS) and can't graph in three dimensions.
While my teacher thinks that I am doing math, I am actually playing games on my TI-86.
by Eh heh heh April 01, 2004