Casio Calculator Fx-991ex

Displays on Mathematical sentence 10+2 digits display monitor in various lines Natural Textbook Function 552 calculation functions/special 9 variable memories Multi-replay functions Spread sheet, matrix, and vector calculations Integrate, complex number, and equation and inequality calculations Calculable on logic and engineering symbol Statistical distribution calculation Ratio and Constant calculation Creatable the online image by QR Code Display for the graph and the general graphic on smartphone Powered by both single AAA battery (LR-03) and solar energy