FX-991ES Plus 2nd edition

FX-991ES Plus 2nd edition

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At a glance

The Natural Display (Natural-V.P.A.M.) shows mathematical expressions like roots and fractions as they appear in your textbook, and this increases comprehension because results are easier to understand.

  • Natural-V.P.A.M.
  • Dot matrix display
  • 15 and 10+2 digits
  • 417 functions
  • Equation solver
  • 20 pairs of values for metric conversion
  • Calculation with complex numbers
  • Calc key (temporary formula memory)
  • 40 physical constants
  • Matrix/vector calculation
  • Numerical integral & differential calculus
  • Random Integers
  • New equation Mode
  • Function table
  • Two-Way-Power

Technical Specifications

    Display
    • Display type: 31 * 96 FULL DOT
    • Natural display
    • Algebraic input logic: Natural V.P.A.M.
    • Number of characters/lines: 16/1+10/1
    • Significand function: 10+2

    Memory
    • Repeat function
    • Variable memory: 9

    Basic mathematics
    • Functions: 417
    • Scientific constants: 40
    • Unit conversions: 40
    • Bracket levels: 24
    • Fraction calculations
    • Angle dimensions DEG/RAD/GRAD
    • Conversions between >DEG/>RAD/>GRAD
    • Coordinate transformation Pol ÷ Rec
    • 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
    • Technical notation ENG/ENG
    • Calculation of complex numbers
    • Random number generator
    • Value table
    • Matrix calculation/vector calculation
    • Equation calculation

    Statistics
    • Summation of ∑x, ∑x2
    • Summation of ∑x, ∑y, ∑x2, ∑y2, ∑xy
    • Standard deviations for grouped and ungrouped values
    • Regression analysis
    • Permutations (nPr) and combinatorics (nCr)

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

    Other
    • Hardcase
    • Automatic shut-off
    • Energy supply: Solar+Battery
    • Battery type: 1 x LR-44
    • Size (H x W x D mm): 11 x 77 x 162
    • Weight: 95 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.

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