FX-991ES PLUS 2ND EDITION

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  • Casio Centre

Description

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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