CASIO Casio-Fx-991ex Fx-991ex Scientific Calculator  (16 Digit)

Key Features: Variables list Prime factorization Random integers Coordinate transformation Power calculation Trigonometry Fraction calculations Combination and permutation 9 variables Statistics (List-based STAT data editor, Standard deviation, regression analysis, Statistics list) Table function UNDO Digit separator Multiline display Additional functions: Spreadsheet calculations Integration calculations Differential calculations CALC function SOLVE function Complex number calculations Base-n calculation Equation calculations Matrix calculations Vector calculations Scientific constants Metric conversions Advanced statistical distribution calculations Inequality calculations Ratio calculations QR Code Engineering symbol calculations General specifications 552 functions Display: Natural Textbook Display“ Natural V.P.A.M. High-Resolution LC-Display, 63 x192 dots, 16/10 + 2 digits Energy supply: Solar + Battery (1xLR44) Comes with new slide-on hardcase Dimensions (H x W x D): 11.1 x 77 x 165.5 mm Weight: 90g