Casio Classwiz FX-991EX Scientific Calculator
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Casio Classwiz FX-991EX Scientific Calculator

1,088MRP 1145 -5%
Inclusive of all Taxes
Out of Stock
Product Highlights
  • High-resolution LCD
  • Solar+Battery
  • Natural Textbook Display
  • QR code Generation
  • Intuitive icon display
  • Unabbreviated English display
  • Interactive format
  • Easy-to-understand key notation
  • High-speed calculation
  • Visualization with graphs
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About The Product
A New Classroom Standard Created From High-resolution LCD Technology

Featuring The Latest Casio Classwiz Non Programmable Scientific Calculator Fx 991 Ex Plus Which Feature High Resolution Display For More Data On Display, Online QR Code Visualization To Help You Do More Via Graphical Representation, Numerical Representation Or Taking Help To Do More. Metallic Finish Keys With Colorful Coding For Better Functionality As Well A Faster Processor And Twice The Memory Size Makes Sure Of Speedy Calculations. Casio Classwiz Fx 991 Ex Non Programmable Scientific Calculator Is Made For You. Become Your Classwiz !


Introduces High-performance Functions Effective For Advanced Mathematics

High-resolution LCD

The New ClassWiz Features A High-resolution Display

- Making It Easier To View Numerical Formulas And Symbols.

New Icon Display

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


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.

Unabbreviated English Display

Nearly All English Words Are Displayed On The Screen In Unabbreviated Form.

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

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.


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


The Spreadsheet Function Can Be Used For Studying Statistics Which Has Become Important In Mathematics Classes


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.

Convert The Numerical Formula Into A QR Code!

Visualization With Graphs

Input Formula


QR Code

Display Graph

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

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.

Engineering Symbols

Perform Engineering Calculations That Include Symbols Such As K, M, M, And N.

Main Functions

Variables List

Prime Factorization

Random Integers

Coordinate Transformation

Power Calculation


Fraction Calculations

Combination And Permutation

9 Variables

Statistics (List-based STAT Data Editor, Standard Deviation, Regression Analysis, Statistics List)

Table Function


Digit Separator

Multiline Display

Additional Functions

Spreadsheet Calculations

Integration Calculations

Differential Calculations

CALC Function

SOLVE Function

Complex Number Calculations

Base-n Calculation

Equation Calculations

Matrix Calculations

Vector Calculations

Scientific Constants

Metric Conversions

Advanced Statistical Distribution Calculations

Inequality Calculations

Ratio Calculations

QR Code

Engineering Symbol Calculations

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 D): 11.1 X 77 X 165.5 Mm

Weight: 90g
Product Weight
500 gm
Model Id
16/10 + 2 digits
Product Dimension (In CM)
1x17x1 (LxBxH)

Product Highlights

Warranty Details

Warranty Summary
3 Years Manufacturer Warranty
Warranty Type
Manufacturer Warranty
How To Claim Warranty
Click Here
Covered In Warranty
All parts which are bundled with the machine are covered for warranty support
Not Covered In Warranty
Software issues transit damage / Customer induced damage (if machine does not have accidental damage protection) OS support

Return Policy

Return Policy
7 Days Return Policy - Return is accepted by the seller within 7 days of delivery, only if goods are damaged. In case of wrong, missing or undelivered product, please highlight the issue within the 2 days of delivery.  Cancellation allowed.
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