TI-83 Silver Portable Graphing Calculator TI-83 Silver Graphing Calculator Portable calculator with large LCD display and TI Graph Link for increased capacity and speed. Operating batteries and hard cover case included. Display Characters x Lines16 x 8 Display NotationGraphic Storage Memory2MB Levels of ParenthesesUnlimited Graphs, Business Graphs, Rectangular Functions Graphs, Polar Equations Graphs, Parametric Equations Interactive Zoom14 Programming Steps/StorageMemory limits Programming Subroutines Hypothesis Testing Confidence Interval Calculating Hyperbolic Functions Trig/Log Functions BaseBinary Logical (Boolean) Operations Simultaneous Equations Calculus Operations Matrices Complex Numbers Time-Value-of-Money Cash Flows Amortization Interest Rate Conversion Equation Editor Direct Algebraic Logic Equation Play Back Simple Scientific Function One Variable Statistic Function Size3-1/2w x 7-3/8d Replacement Batteries4 AAA (sold separately) I/O Port