TI-86 Graphing Calculator TI-86 Graphing Calculator Portable calculator with large LCD display. Operating batteries and hard cover case included. Display (characters x lines)21 x 8 Display NotationGraphic Storage Memory96K Levels of ParenthesesUnlimited Graphs, Rectangular Functions Graphs, Polar Equations Graphs, Parametric Equations Graphs, Differential Equations Interactive Zoom16 Programming Steps/StorageMemory limits Programming Subroutines Hyperbolic Functions Trig/Log Functions Base: Binary/Oct./Dec./Hex. Logical (Boolean) Operations Simultaneous Equations Calculus Operations Matrices80 x 80 Complex Numbers80 x 80 Time-Value-of-Money, Cash Flows, and AmortizationAvailable for downloading on the World Wide Web Equation Editor Direct Algebraic Logic Equation Play Back Simple Scientific Function One Variable Statistic Function Size3.2w x 6.8d Replacement Batteries4 AAA (sold separately) I/O Port