Casio ClassWiz fx-991CW Scientific Calculator

Casio FX-991CW advanced scientific calculator with 552 functions, a fast processor, and a high-resolution grayscale display. Icon menu and arrow keys make navigation easier and faster. 3-year warranty.

New in the ClassWiz series

The Casio FX-991CW basically works the same way as the FX-82CW and 85CW plus, but it has almost twice as many functions. The calculator's spreadsheet program enables spreadsheet calculations. Thanks to the QR code feature, you can view results directly on your phone or tablet. The calculator has a slim and rounded shape, resembling today's smartphones. The buttons and navigation are designed to facilitate use. The Casio FX-991CW ClassWiz also works well for remote learning. The calculator can be connected to learning services via a browser, such as ClassPad.

·Casio FX-991CW display

• Display type: 192 x 62 Full Dot
• Natural display
• Algebraic input method: Natural V.P.A.M.
• Icon menu
• Number of characters per line: 16/1+10/1
• Number of characters and exponent characters: 10+2

Memory

• Replay function
• Variable memory: 9
• Equation solver: Calc/Solv key

Mathematics

• Functions: 552
• Scientific constants: 47
• Unit conversions: 40
• Number of nested parentheses: 24
• Fraction calculations
• Angle units DEG/RAD/GRAD
• Angle unit conversion >DEG/>RAD/>GRAD
• Polar-rectangular conversion
• Trigonometric functions sin/cos/tan/sin-1/cos-1/tan-1
• Hyperbolic functions sinh/cosh/tanh/sinh-1/cosh-1/tanh-1
• Exponent, log, ln, 10^x, e^x
• Mathematical functions √, x², x⁻¹, 1/x, x!, √, xʸ, √, x¹/ʸ
• Base-n calculations (hexadecimal/decimal/binary/octal)
• Logical functions (AND/OR/...)
• Sexagesimal decimal
• Percentage calculations
• Prime factorization
• Engineering notation ENG/ENG
• Calculations with technical symbols
• Complex number calculations
• Random number generator for integers
• Random number generator
• Base-n calculations
• Value tabulation
• Matrix calculations: 4x4
• Vector calculations
• Equation solving: up to 4th degree equations
• Linear equation system: up to 4 unknowns
• Inequalities Statistical calculations
• ∑x, ∑x²
• ∑x, ∑y, ∑x², ∑y², ∑xy
• Standard deviation
• Distribution functions
• Regression
• Permutation (nPr), combinations (nCr) Differential and integral calculus
• Numerical integral calculus
• Numerical differential calculus