-This Texas Instruments calculator offers a large amount of memory and 7 different graphing styles, making it great for both high school and college-level coursework. -The TI-84 Plus CE is an updated version of the TI-83 Plus. Keystroke-for-keystroke compatible with the TI-83 Plus, but with 2.5 times the speed and 3 times the memory. -Features 7 different graphing styles. -Offers lots of functions, including equation solving. Includes functions such as financial, trigonometry, statistical, graphic, forecasting, engineering, logarithm and hyperbolic. Batteries not included. Charging cord is not included. Scuff marks can be seen throughout the exterior-mostly on the backside.