Casio FX991EX Scientific Calculator, Black

Intuitive, easy-to-learn icon display The use of icons on the menu screen improves view ability. Selection of the desired function is quick and easy. Natural Textbook Display Input and display fractions, powers, logarithms, roots, and other mathematical formulas and symbols just as they appear in textbooks. List display function for thorough, speedy learning Variables and statistical calculation results stored in memory can be displayed in lists. There's no need to recall and confirm individual values as with previous models. Easy-to-understand English messages and interactive format Nearly all English words are displayed on the screen in unabbreviated form. Interactive menu display realizes more intuitive operation. High computational competence for performing even advanced mathematics Class Wiz contains calculation functions that support even advanced mathematical operations, including spread sheet calculations, 4 × 4 matrix calculations, calculation of simultaneous equations with four unknowns and quartic equations, and advanced statistical distribution calculations. Online Visualization Service Using QR Code Generate QR codes of equations input into the calculator by a simple operation. Graphs and other graphics can be displayed on smartphone or tablet screens.