FX-991EX

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At a glance

The ClassWiz series with high-resolution LCD and many other extras

The Classwiz series offers a new high-resolution LC display with 192×63 pixels and a resolution that is four times higher than that of the familiar displays of the FX-ES Plus series. In addition, the new ClassWiz series boasts new hardware with a faster processor and double the memory size.

    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 L): 77 x 165,5 x 11,1 mm
    • Weight: 90g

Technical Specifications

    Display
    • Display type: 62 * 192 FULL DOT
    • Natural display
    • Algebraic input logic: Natural V.P.A.M.
    • Number of characters/lines: 16/1+10/1
    • Icon menu
    • Significand function: 10+2

    Memory
    • Repeat function
    • Variable memory: 9
    • Number of storable programs: Calc / Solv button

    Basic mathematics
    • Functions: 552
    • Scientific constants: 47
    • Unit conversions: 40
    • Bracket levels: 24
    • Fraction calculations
    • Angle dimensions DEG/RAD/GRAD
    • Conversions between >DEG/>RAD/>GRAD
    • Coordinate conversion Pol
    • Trigonometric functions sin/cos/tan/sin-1/cos-1/tan-1
    • Hyperbolic functions sinh/cosh/tanh/sinh-1/cosh-1/tanh-1
    • Exponent, log, In, 10x, ex
    • Mathematical functions ?, x2, x-1, 1/x, x!, ?, xY, ?, x1/y
    • Calculations based on n (hexadecimal/decimal/binary/octal)
    • Logical operators (AND/OR/etc.)
    • Calculations in the sexagesimal system
    • Percentage calculations
    • Prime factorization
    • Technical notation ENG/ENG
    • Calculation with technical symbols
    • Calculation of complex numbers
    • Random number generator
    • Random integers
    • Base-N calculations
    • Value table

    Statistics
    • Summation of ?x, ?x2
    • Summation of ?x, ?y, ?x2, ?y2, ?xy
    • Standard deviations for grouped and ungrouped values
    • Distribution functions (normal distribution and inverse normal distribution, binominal distribution, Poisson distribution)
    • Regression analysis
    • Permutations (nPr) and combinatorics (nCr)
    • Matrix calculation/vector calculation: 4X4
    • REF/RREF function
    • Equation calculation: until 4 degrees
    • Inequality calculation

    Differential and integral calculus
    • Numerical integral calculus
    • Numerical differential calculus

    Other
    • Menu language: english
    • QR code function¹
    • Spreadsheet calculations
    • Automatic shut-off
    • Identical emulator software
    • Energy supply: Solar+Battery
    • Battery type: 1 x LR-44
    • Size (H x W x D mm): 11,1 x 77 x 165,5
    • Weight: 90 g

    • Availability of models and/or lineups may differ depending on the country or region.
      Technical amendments and errors excepted. The sizes in figures do not correspond to the original sizes.
      The colours may differ slightly from the original.