CASIO FX-991CW 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.

Technical Specifications:
Auto Power Off
Dimentions (mm): 80(W) x 162(L) x 11(H)
Weight: 95g
Power Supply: Dual Powered / Solar and Battery
Design: Slide On Hard Case
Display: High Resolution LCD
Functions and Features:
552 Functions
Table Functions
Backspace / DeleteMulti replay Function24 Parentheses Levels9 Variable MemoriesReset functionSquare Root keyDegrees / Minutes / Seconds40 Metric Conversions (20 Conversion Pairs)Scientific and Statistics*Random NumbersFactorialsCombinationsPermutationsFIX / SCI / NORMExponentialsLogarithmicDegreesRadiansGradiansExponentsReciprocalsNegative IndicatorExpression EditingRoots and PowersCoordinate ConversionLogarithmic RegressionPower RegressionQuadratic RegressionInverse RegressionLinear RegressionCalculations on the Basis of nCombinations (nCr) and Permutations (nPr)IntegrationDifferentialEquation CalculationHyperbolicsNormal DistributionMatricesEquation SolverFormula SolverNumeric DifferentiationNumeric IntegrationDEC/HEX/BIN/OCT ConversionsVector CalculationsComplex Number CalculationsRandom IntegersFraction CalculationsList Based Statistics Data EditorStandard DeviationPaired Variable Statistics Regression AnalysisLogical Operations40 Scientific ConstantsMetric / Imperial Conversions40 Metric ConversionsLogarithm LogTrigonometric (SIN/COS/TAN)Exponential RegressionFunctions:Trigonometric FunctionsCalc FunctionsSolve Functions

Suitable for Ages 11+

Students using this Calculator for GCSE's & A Levels Examinations and came out with exceptional grades.

SAME DAY UK DISPATCH

■New Icon display
- ClassWiz Series
  *The photo shows the fx-991CW
■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-991CW
■Unabbreviated English display
Nearly all English words are displayed on the screen in unabbreviated form.
- ClassWiz Series
  *Messages are spelled out (not abbreviated)
■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.

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 perfectlyEasy-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.

Effective learning for
Advanced Mathematics

Even advanced mathematical calculations are simple to perform and
functions that take advantage of previous unavailable display capabilities
are now possible

■Spreadsheet calculations
Statistics
The spreadsheet function can be used for studying statistics which has become important in mathematics classes
Recursion
In addition, the spreadsheet function makes it possible to enter recursive formulas
Riemann Integral
Calculation using advanced Riemann functions is also possible
The spreadsheet function makes it easy to use real-world data even in the classroom, enabling students to effectively study statistical processing

■Advanced statistical distribution calculations
This function makes it possible to perform several different types of distribution calculations such as binomial probability.

Binomial probability

■Matrix calculations

This function makes it possible to perform matrix calculations of up to 4 rows by 4 columns.

4x4 Matrix calculation

■Other newly realized calculations

ClassWiz supports other advanced mathematical operations including

Simultaneous linear equations in 2 to 4 unknowns

High-degree equations of second to fourth degree

Second-degree to fourth-degree inequalities
Online Visualization Service Using QR Code
The input formula and data are converted into a QR Code matching the settings on the calculator, then displayed on the calculator screen.
Display numerical formulas and graphs and use them in study by reading QR Codes with an application on a smartphone, tablet, or other similar device. (fx-991EX/570EX only)
Convert the numerical formula into a QR Code!Visualization with graphs
- Input formula
  Table
  QR Code
  Display Graph
  Makes formulas visually understandable
- Easy formula input
  Input formula
  Calculation Result
  QR Code
  Display formula
  Promotes fast, efficient report writing
- Quick user manual call-up
  Display the menu
  QR Code
  Display the manual
  Makes learning to operate the calculator fast and easy

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.