The Casio CFX 9850GB Plus is a handheld graphing calculator meant for school and university students. The 6.5X4-cm color screen and user-friendly menu system make this graphing calculator easy to use. The 50-button color-coded keypad is clearly marked with the various functions in this Casio calculator, making them easy to find. This 4-AAA battery-powered Casio calculator comes complete with a case for safe storage. The Casio CFX 9850GB Plus boasts animated display, which shows the graph move in sync with the changes in values.