Casio FX-991ES Plus Scientific Calculator

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

Display

- - Display type: 31 * 96 FULL DOT
  - Natural display
  - Algebraic input logic: Natural V.P.A.M.
  - Number of characters/lines: 15/1+10/1
  - Significand function: 10+2

Memory

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

Basic mathematics

- - Functions: 580
  - Scientific constants: 40/
  - Unit conversions: 164
  - Bracket levels: 24
  - Fraction calculations: 2 Modi
  - 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, 10^x, e^x
  - Mathematical functions ?, x², x^-1, 1/x, x!, ?, x^Y, ?, x^1/y
  - Calculations based on n (hexadecimal/decimal/binary/octal)
  - Logical operators (AND/OR/etc.)
  - Calculations in the sexagesimal system
  - Percentage calculations
  - Remainder function
  - Technical notation ENG/ENG
  - Calculation of complex numbers
  - Random number generator
  - Random integers
  - Calculation of the minimum or maximum of a quadratic function
  - GCD/LCM function
  - Base-N calculations
  - "Verify" test function
  - Value table
  - Recurring decimal fractions

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
  - REF/RREF function
  - Equation calculation
  - Inequality calculation

Differential and integral calculus

- - Numerical integral calculus
  - Numerical differential calculus

Other

- Menu language: german
- Automatic shut-off
- Identical emulator software: optional
- Energy supply: Solar+Battery
- Battery type: 1 x LR-44
- Size (H x W x D mm): 11,1 x 80 x 162
- Weight: 95 g

Casio FX-991ES Plus Scientific Calculator

Product Description

Casio FX-991ES Plus Scientific Calculator

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