Sell Casio FX991 EX Scientific (Original) best price

Features Intuitive easy-to-learn icon display The use of icons on the menu screen improves viewability. 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 ClassWiz contains calculation functions that support even advanced mathematical operations including spreadsheet 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. A comprehensive set of advanced functions unique to CASIO scientific calculators Spreadsheet calculations Useful for learning statistics. Up to 5 columns × 45 rows (maximum of 170 data items) Matrix calculations Perform calculations with matrices of up to 4 rows and 4 columns. Vector calculations Perform calculations using up to four third-order vectors stored in memory. Multiline display Formulas are automatically wrapped to multiple lines.* *In linear input mode Integration calculations Perform integration calculations in advanced mathematics. Differential calculations Perform differential calculations in advanced mathematics. Equation calculations Calculation of simultaneous equations in 2 to 4 unknowns and high-degree equations of second to fourth degree Inequality calculations Solve second-degree to fourth-degree inequalities. Advanced statistical distribution calculations Perform calculations involving normal distributions binomial distributions and Poisson distributions. Ratio calculations Perform ratio calculations such as A:B=X:D. Metric conversions Select units from the Metric Conversion Command List. Scientific constants Select scientific constants from the Scientific Constant Table. Variables list One-touch list display Statistics list Displays six rows at once. Digit separator Separation every three digits makes even large numbers easy to read. Engineering symbols Perform engineering calculations that include symbols such as k M m and n.