Casio-Calculators Model: FX-991EX


Features overview

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.

Functions & general information

Highlight

There is also a spreadsheet which allows the user to perform basic spreadsheet calculations on a scientific calculator for the first time. In addition, results can be viewed on a smartphone or tablet thanks to the newly available QR code¹ function.

Detailled Specification:

  • High-resolution LC display with 192 x 63 pixels
  • Natural-V.P.A.M. – Natural display
  • 552 functions
  • Icon menu
  • Spreadsheet
  • QR code function¹
  • Solving equations and systems of up to four equations
  • 4X4 matrices
  • Vector calculations
  • Integration calculations
  • Differential calculations
  • Probability distribution
  • Calculation with technical symbols
  • Undo-Function
  • Complex number calculation
  • Base-N calculations
  • Equation calculations
  • Inequality calculation
  • SUM calculation
  • 47 wcientific constants
  • 40 metrixc conversions
  • Automatic parenthesis
  • 24 Parentheses level
  • Variable memory (9)
  • Trigonometric and invers trigonometric functions
  • Hyperbolic and invers hyperbolic functions
  • Power / Power Root calculations
  • logarithmic calculations
  • Exponential calculations
  • Root calculations
  • Combinatoric and Permutation
  • Prime factorization
  • Random Integer
  • Conversion of polar coordinates into rectangular coordinates and invers
  • Fraction (two modes)
  • Conversion of sexagesimal into decimal and invers
  • Calculates in Degree, Grad and Radian
  • SCI/FIX/ENG function
  • List based statistics
  • 1-variable statistics
  • Standard deviation
  • 2-variable statistics (Regressions)
  • Percentage calculation
  • Non-natural input
  • Output with √ form
  • Output with Π form
  • Function table

¹ QR Code is registered trademark of DENSO WAVE INCORPORATED in Japan and in other countries.

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