CASIO FX-991EX CLASSWIZ  ADVANCED SCIENTIFIC CALCULATOR
.....552 Functions......

 

This is the Superior range scientific calculator presents 552 mathematical functions on its exceptionally clear and easy-to-read Natural Textbook Display.

Ideally suited for advanced mathematics.

Natural display technology to show expressions as they appear in textbooks.

Permitted for all UK examinations - ideal for GCSE’s,  A-level and Higher Grade.

This ever popular model is available with Random Integers and an improved equation mode, as well as solar power.

The new ClassWiz features a high-resolution display making it easier to view numerical formulas and symbols.

  • ■New Icon display

    • ClassWiz Series
      *The photo shows the fx-991EX

      •  

    • ES PLUS Series

  • ■Innovative input method

  • ■List display

The new ClassWiz makes it possible to display on the screen twice the number of characters in normal size and six times the number in small size compared with previous models. 

High-resolution LCD drives further evolution!

Higher resolution increases the amount of information that can be displayed and improves usability. In addition, ClassWiz is equipped with a basic spreadsheet function for creating spreadsheets with up to 5 columns and 45 rows (maximum of 170 data items).

ClassWiz technology has the power to change mathematics classroom

Easy-to-use

Superb usability that takes full advantage of the improved display capabilities makes the interface easy to use in classrooms

  • ■Intuitive icon display

    The use of icons on the menu screen improves viewability.
    Selection of the desired function is quick and easy.

    • ClassWiz Series
      *The photo shows the fx-991EX

      •  

    • ES PLUS Series

  • ■Unabbreviated English display

    Nearly all English words are displayed on the screen in unabbreviated form.

    • ClassWiz Series
      *Messages are spelled out (not abbreviated)

      •  

    • ES PLUS Series

  • ■Interactive format

    Interactive menu display realizes more intuitive operation.

  • ■Natural Textbook Display

    Input and display fractions, powers, logarithms, roots, and other mathematical formulas and symbols just as they appear in textbooks.

      •  

    • MS Series

Newly designed body for the best use of calculation

Featuring intelligent design and an elegant texture

Comes with slide-on hard case
  • Special surface processing

    A special surface process applied to the body results in an elegant texture and design.

  • Metallic keys
    (fx-991EX/570EX only)

    The stylish look and feel of metal imparts a sense of luxury.

  • Key functions arranged by color

    The functions assigned to keys are color-coded to facilitate key operation.

  • Easy-to-understand key notation

    The key notation, like the display format, uses signs and symbols like those found in mathematics textbooks. This natural interface makes input fast and easy.

  • Thin rounded body

    The thin, smoothly rounded body fits the hand perfectly.

Easy-to-study

A High-performance processor and twice the memory of previous models
ensure speedy operation and superior computational power.

High performance effective for education

  • ■High-resolution display

    192 × 63-dot display.
    Clear display of equations and messages

    •  

  • ■High-speed calculation

    Fast calculation for smooth performance in class or during examinations

  • ■Data capacity for Statistics

    Capacity to process 160 statistical data items

    •  

  • ■High-performance functions

    • Use of spreadsheets
    • 4 × 4 matrix calculation

List display function for thorough, speedy learning

Variables and statistical calculation results stored in memory can be displayed in lists. There's no need to recall and confirm individual values as with previous models.

High computational competence for performing even advanced mathematics

ClassWiz contains calculation functions that support even advanced mathematical operations, including spreadsheet calculations, 4 X 4 matrix calculations, calculation of simultaneous equations with four unknowns and quartic equations, and advanced statistical distribution calculations.

A comprehensive set of advanced functions unique to CASIO scientific calculators

  • Spreadsheet calculations

    Useful for learning statistics. Up to 5 columns × 45 rows (maximum of 170 data items)

    •  

  • Matrix calculations

    Perform calculations with matrices of up to 4 rows and 4 columns.

    •  

  • Vector calculations

    Perform calculations using up to four third-order vectors stored in memory.

    •  

  • Multiline display

    Formulas are automatically wrapped to multiple lines.* *In linear input mode 

  • Integration calculations

    Perform integration calculations in advanced mathematics.

    •  

  • Differential calculations

    Perform differential calculations in advanced mathematics.

    •  

  • Equation calculations

    Calculation of simultaneous equations in 2 to 4 unknowns and high-degree equations of second to fourth degree

    •  

  • Inequality calculations

    Solve second-degree to fourth-degree inequalities.

  • Advanced statistical distribution calculations

    Perform calculations involving normal distributions, binomial distributions, and Poisson distributions.

    •  

  • Ratio calculations

    Perform ratio calculations such as A:B=X:D.

    •  

  • Metric conversions

    Select units from the Metric Conversion Command List.

    •  

  • Scientific constants

    Select scientific constants from the Scientific Constant Table.

  • Variables list

    One-touch list display

    •  

  • Statistics list

    Displays six rows at once.

    •  

  • Digit separator

    Separation every three digits makes even large numbers easy to read.