Casios first scientific calculator with a spreadsheet facility. Stylish design with a new high resolution screen, new hardware and a faster processor with double memory size. Advanced specifications with 552 Functions and is all UK Exam approved. The FX-991EX has a spreadsheet function that allows the user to carry out basic spreadsheet calculations on a scientific calculator for the first time. LCD display. 9 variable memories. Non-stick keys. 16/10 + 2 -digit display. Auto shut-off. 552 functions. Mathematical functions include various. Prime factorisation. Algebraic logic. Regression analysis. Statistical functions. Hyperbolic. 24 levels of parenthesis. Metric. Dual power source - solar with battery back up. General information: Button cell (included) . Manufacturers 3 year guarantee.