The Texas Instruments TI-83 Plus Graphing Calculator is a handheld device designed for basic, financial, and graphing calculations. With a regular display size and key size, this calculator is equipped with an LCD display and is programmable for added versatility. Powered by batteries, this unit from Texas Instruments is a reliable tool for students and professionals alike. The model includes calculus functions and comes with a cover for protection. Perfect for office use, this graphing calculator offers convenience and efficiency in one compact package. Good used condition with some wear on the case and cover. Buttons nice and work well. Screen not damaged. Includes slide on case and batteries.