The Texas Instruments Graphing Calculator takes care of all complex mathematical calculations. It is powered by a battery.Familiar TI-84 Plus functionality in a sleek new design that features a crisp color screen.Useful for a wide range of courses, including pre-algebra, algebra 1 and 2, geometry, statistics, pre-calculus, calculus, biology, chemistry, physics and business and finance.Preloaded apps are designed to help you solve a wide range of problems. Tackle logarithm functions, hyperbolic functions, matrix functions, forecasting functions and more.