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FX-991ES Plus

fx991esplus

Features overview

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

Functions & general information

General information:

  • 417 functions
  • Display: Natural Textbook Display, Natural V.P.A.M.
  • Power supply: solar powered with an auxiliary battery
  • with a hard case
  • Dimensions (H x W x D): 162,0 x 80,0 x 11,1 mm
  • Weight: 95g

Functions:

  • NEW: New fraction input mode
  • NEW: Improved equation mode
  • NEW: Random integers
  • Repeat function
  • 24 levels of brackets
  • Variable memories (6)
  • STO/RCL keys
  • Scientific functions:
  • Trigonometric and inverse trigonometric functions
  • Hyperbolic and inverse hyperbolic functions
  • Exponential functions 10x, ex
  • Inverse function x-1
  • Power and root functions x√, √, x2, xy
  • Logarithm functions (log, ln)
  • Combinatoric and permutations
  • Random number generator
  • Converts between polar coordinates and rectangular coordinates
  • Calculates with fractions (two modes)
  • Converts between sexagesimal and decimal
  • Calculates in gradian, degree and radian measure
  • π key, e key and % key
  • SCI/FIX
  • Statistics:
  • Lists of based statistics
  • Statistics with a variable
  • standard deviation
  • Statistics with two variables
  • Linear
  • Exponential
  • abExponential
  • Logarithmic
  • Power
  • Inverse
  • Quadratic
  • Solve/Calc
  • Numeric integration
  • Numeric differentiation
  • ∑()-function
  • calculates with complex numbers
  • a+bi /r∠θ
  • Calculations on the basis of n
  • Logical calculations
  • Equations
  • Linear systems of equations
  • Polynomial equations
  • Linear systems of equations
  • Polynomial equations
  • Matrix
  • Determinants
  • Inverse matrix
  • Vector
  • internal product
  • external product
  • physical constants
  • metric conversion
  • Normal entry
  • Fractions
  • Roots
  • Powers
  • Parentheses
  • Amounts
  • Numeric differentiation/integration
  • Totals
  • Non-natural input (such as the MS models)
  • Output in √-form
  • Output in π-form
  • Functions table

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