Casio fx-991ES Plus Scientific Calculator Natural Textbook Display Dual Power Battery & Solar

Casio FX-991ES Plus Blue 2nd Gen Non-Programmable ScientificProduct Description-Intuitive, easy-to-learn icon display-Display expression same as textbook-List display function for thorough, speedy learning-Easy-to-understand English messages and interactive format-High computational competence for performing even advanced mathematics-Online Visualization Service Using QR CodeA comprehensive set of advanced functions:-Spreadsheet calculations-Matrix calculations-Vector calculations-Multiline display-Integration calculations-Differential calculations-Equation calculations-Inequality calculations-Advanced statistical distribution calculations-Ratio calculations-Metric conversions-Scientific constants-Variables list-Statistics lis-Digit separato-Engineering symbols