With the advanced features of a next-generation graphing calculator, the FX-CG50 PRIZM™ will support students and educators through middle school, high school and into college. With Natural Textbook Display and an intuitive icon-based menu, students will find this calculator incredibly easy to use. Its brand-new 3D Graph Drawing and improved catalog function allow for greater engagement and real-life application in the mathematics classroom. Black. Power Source(s): Battery; Display Notation: Natural Textbook; Number of Display Digits: 21; Display Characters x Display Lines: 21 x 8.