Texas Instruments student graphing calculator TI-83+ with cover. Vintage from 1999. Wide array of math and scientific functions. Includes functions for finance, calculus, trigonometry, equation solving, statistical, graphic, forecasting, engineering, logarithms, and hyperbolic functions. Large 8-line, 16-character display for easy viewing. Batteries and hardcover case are included. For high school math and science Allows students to graph and compare functions, as well as perform data plotting and analysis. Fresh AAA batteries and slide case included. Great working condition.