---
product_id: 50525483
title: "Casio FX991EX Scientific Calculator 192x63"
brand: "casio"
price: "1251 DH"
currency: MAD
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.ma/products/50525483-casio-fx991ex-scientific-calculator-192x63
store_origin: MA
region: Morocco
---

# Advanced stats & distributions 192x63 high-def display 4th degree polynomial solver Casio FX991EX Scientific Calculator 192x63

**Brand:** casio
**Price:** 1251 DH
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your calculations—where precision meets power!

## Quick Answers

- **What is this?** Casio FX991EX Scientific Calculator 192x63 by casio
- **How much does it cost?** 1251 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/50525483-casio-fx991ex-scientific-calculator-192x63)

## Best For

- casio enthusiasts

## Why This Product

- Trusted casio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Algebraic Powerhouse:** Solve up to quartic equations and 4x4 matrix operations effortlessly—your secret weapon for complex problem-solving.
- • **Next-Level Statistics:** Binomial, Poisson, and Normal distributions at your fingertips—ditch the tables and impress with instant insights.
- • **Dynamic Spreadsheet Mode:** Create and manipulate tables with dual-function support and cell referencing—boost your data game on the go.
- • **Smart QR Code Integration:** Generate QR codes for instant graph visualization and deeper analysis via your smartphone—stay ahead with tech-savvy results.
- • **Crystal-Clear 192x63 Display:** Experience textbook-style clarity for fractions, surds, and multi-line calculations—never miss a detail.

## Overview

The Casio FX991EX is a cutting-edge scientific calculator featuring a razor-sharp 192x63 high-definition display, advanced algebraic capabilities including solving quartic equations and 4x4 matrix operations, and comprehensive statistical functions covering binomial, Poisson, and normal distributions. Enhanced with a dynamic spreadsheet mode and QR code output for seamless data visualization, it combines ease of use with powerful features tailored for secondary school to university-level STEM professionals.

## Description

FX-991EX Advanced Scientific Calculator

Review: Razor-sharp display, powerful new functions and the same ease of use as any previous Casio calculator - As a former Head of Mathematics, and a user of Casio calculators for over 40 years, I am confident that the fx-991EX is quite possibly the best classroom calculator they have ever produced. It retains the ease of use of the fx-83GT, but adds power and functionality that takes it literally to game-changing levels. Aimed squarely at the Secondary school market, and carefully featured to ensure that it stays within the parameters of public examination guidelines, this would be the calculator of choice for any student from Year 7 to Year 13 Further Mathematics. The only other calculator an A-Level student might need would be a graphical calculator, but the features of this one make even that an option rather than an essential. Some of the new features that make this compelling for me are as follows: NUMBER The incredibly high definition screen and multi-line display options make it easy to enter calculations and see answers in textbook style and clarity - be they with fractions, brackets, surds (roots), or any combination. The new Random Integer function makes it easy to simulate coin flips, dice rolls and even card selections or lottery draws, opening up possibilities for a huge variety of mathematical experiments and games. Factorising large numbers (up to 10 digits) into powers of prime factors with a single FACT command - amazing. Ratio calculations (example 3:10 is equivalent to ?:7) - the classic ‘Rule of Three’ which was an arithmetic nightmare to Victorian schoolchildren, is now just a tap away. ALGEBRA Incredible power to solve equations and systems of equations or inequalities. The machine will solve algebraically any polynomial equation up to 4th degree (quartics). It can’t go higher because the general 5th power (quintic) is unsolvable - see Galois Theory! However, it can find a root for any general equation using Newton-Raphson to refine a user-supplied initial approximation. Similarly systems of simultaneous equations now go up to four equations in four unknowns. Also, by using the Inequality function on a quadratic, cubic or quartic polynomial, one can quickly find the points on the graph (if any) where it crosses the x-axis. The Solving and Inequality functions alone remove much of the need to turn to graphic calculators when working with graphs of polynomial functions. MATRICES Matrices can now be input up to 4 x 4, with the calculator happily finding determinants, sums, products and even inverses. The previous limit was 3 x 3 matrices, although even this was sufficient to handle most exam questions. STATISTICS This was, for me, the main reason for my purchase. I can now finally dispense with my statistical tables - Binomial, Poisson and even Normal distributions are now covered completely. For example, one can calculate the probability that three coins out of five will show Heads (0.2734375); the probability that a person is taller than two standard deviations from the mean (0.05399096651); a two-tailed 95% Normal confidence interval (+/- 1.959964028) etc. All with a few taps - just entering the values and reading off the result. Note to CASIO - add in Chi-Squared values and you will have all the lab scientists and social scientists queueing up as well! SPREADSHEET Not content with its enhanced Table creation facilities (now supporting two functions f(x) and g(x) rather than just one), a basic Spreadsheet mode is also available, allowing input of formulae with both relative and absolute cell referencing, and display of either results or formulae in each cell. OTHER FUNCTIONS Vectors - including Scalar and Cross Product up to 3-D vectors Calculus - numerical differentiation and integration with user-defined accuracy Complex Numbers - Work with both Modulus/Argument and Cartesian form QR Codes - a QR code is generated by the calculator which can be read by a smartphone and used to display more information about the results via Casio’s own website (for example this might be used to display a graph of the calculator’s results). SUMMARY Razor-sharp display, powerful new functions and the same ease of use in an affordable calculator from one of the world’s most trusted calculator manufacturers make this the most highly recommended product for school use currently on the market.
Review: Scientific calculator - Scientific calculator for uni is great.

## Features

- Casio FX991EX Scientific Calculator 192x63

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B011UK5DGY |
| Best Sellers Rank | 41,500 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 81 in Scientific Calculators |
| Guaranteed software updates until | unknown |
| Item model number | FX-991EX |
| Manufacturer | Casio |
| Product Dimensions | 16.6 x 7.7 x 1.1 cm; 200 g |

## Product Details

- **Brand:** Casio
- **Calculator Type:** Engineering/Scientific
- **Colour:** Black
- **Compatible devices:** Devices with QR code readers, like smartphones and tablets
- **Display type:** Natural Textbook Display
- **Material:** Plastic
- **Model name:** Fx 991 Ex
- **Number of batteries:** 1 LR44 batteries required.
- **Power source:** Battery Powered
- **Product dimensions:** 16.6L x 7.7W centimetres

## Images

![Casio FX991EX Scientific Calculator 192x63 - Image 1](https://m.media-amazon.com/images/I/616ryRoQ5EL.jpg)
![Casio FX991EX Scientific Calculator 192x63 - Image 2](https://m.media-amazon.com/images/I/71qzJyFuKdL.jpg)
![Casio FX991EX Scientific Calculator 192x63 - Image 3](https://m.media-amazon.com/images/I/61VaP+oUEmL.jpg)
![Casio FX991EX Scientific Calculator 192x63 - Image 4](https://m.media-amazon.com/images/I/61GgfWl3WLL.jpg)

## Questions & Answers

**Q: Is this suitable for the new A level maths spec starting in September?**
A: Yes, Casio fx- 991 Ex classwiz was suggested by the WJEC subject (maths)officer. I hope this is applicable to the other boards as well. I am almost certain this is suitable. This is what I am planning to suggest my students.

**Q: Is it suitable for gcse higher maths ?**
A: I purchased this for my son to do a level maths in college it was recommended by the maths teacher

**Q: Is this the English or the German version**
A: Hello,English version.

**Q: what is the ISBN number**
A: The ISBN Calculator is a free tool made available by the International ISBN Agency for publishers across the world and we guarantee that our calculator is fully accurate and up to date for all valid ISBN ranges.  It is designed primarily to allow publishers to calculate the valid ISBNs from a prefix that they have been legitimately assigned by their national ISBN agency. It can also be used to convert the old 10-digit ISBNs (which should no longer be quoted) into their correct 13-digit counterparts. If you have only received a single ISBN from your national ISBN Agency you cannot use the Calculator – you must contact your national ISBN agency if you need more ISBNs.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Razor-sharp display, powerful new functions and the same ease of use as any previous Casio calculator
*by T***R on 7 April 2017*

As a former Head of Mathematics, and a user of Casio calculators for over 40 years, I am confident that the fx-991EX is quite possibly the best classroom calculator they have ever produced. It retains the ease of use of the fx-83GT, but adds power and functionality that takes it literally to game-changing levels. Aimed squarely at the Secondary school market, and carefully featured to ensure that it stays within the parameters of public examination guidelines, this would be the calculator of choice for any student from Year 7 to Year 13 Further Mathematics. The only other calculator an A-Level student might need would be a graphical calculator, but the features of this one make even that an option rather than an essential. Some of the new features that make this compelling for me are as follows: NUMBER The incredibly high definition screen and multi-line display options make it easy to enter calculations and see answers in textbook style and clarity - be they with fractions, brackets, surds (roots), or any combination. The new Random Integer function makes it easy to simulate coin flips, dice rolls and even card selections or lottery draws, opening up possibilities for a huge variety of mathematical experiments and games. Factorising large numbers (up to 10 digits) into powers of prime factors with a single FACT command - amazing. Ratio calculations (example 3:10 is equivalent to ?:7) - the classic ‘Rule of Three’ which was an arithmetic nightmare to Victorian schoolchildren, is now just a tap away. ALGEBRA Incredible power to solve equations and systems of equations or inequalities. The machine will solve algebraically any polynomial equation up to 4th degree (quartics). It can’t go higher because the general 5th power (quintic) is unsolvable - see Galois Theory! However, it can find a root for any general equation using Newton-Raphson to refine a user-supplied initial approximation. Similarly systems of simultaneous equations now go up to four equations in four unknowns. Also, by using the Inequality function on a quadratic, cubic or quartic polynomial, one can quickly find the points on the graph (if any) where it crosses the x-axis. The Solving and Inequality functions alone remove much of the need to turn to graphic calculators when working with graphs of polynomial functions. MATRICES Matrices can now be input up to 4 x 4, with the calculator happily finding determinants, sums, products and even inverses. The previous limit was 3 x 3 matrices, although even this was sufficient to handle most exam questions. STATISTICS This was, for me, the main reason for my purchase. I can now finally dispense with my statistical tables - Binomial, Poisson and even Normal distributions are now covered completely. For example, one can calculate the probability that three coins out of five will show Heads (0.2734375); the probability that a person is taller than two standard deviations from the mean (0.05399096651); a two-tailed 95% Normal confidence interval (+/- 1.959964028) etc. All with a few taps - just entering the values and reading off the result. Note to CASIO - add in Chi-Squared values and you will have all the lab scientists and social scientists queueing up as well! SPREADSHEET Not content with its enhanced Table creation facilities (now supporting two functions f(x) and g(x) rather than just one), a basic Spreadsheet mode is also available, allowing input of formulae with both relative and absolute cell referencing, and display of either results or formulae in each cell. OTHER FUNCTIONS Vectors - including Scalar and Cross Product up to 3-D vectors Calculus - numerical differentiation and integration with user-defined accuracy Complex Numbers - Work with both Modulus/Argument and Cartesian form QR Codes - a QR code is generated by the calculator which can be read by a smartphone and used to display more information about the results via Casio’s own website (for example this might be used to display a graph of the calculator’s results). SUMMARY Razor-sharp display, powerful new functions and the same ease of use in an affordable calculator from one of the world’s most trusted calculator manufacturers make this the most highly recommended product for school use currently on the market.

### ⭐⭐⭐⭐⭐ Scientific calculator
*by C***. on 13 September 2025*

Scientific calculator for uni is great.

### ⭐⭐⭐⭐⭐ Gold Standard.
*by J***Y on 27 January 2024*

An easy-to-use, and incredibly capable calculator. I much prefer this to its CW counterpart, due to the ease of accessing common statistical features, like nCHOOSEr or factorial. Fantastic for GCSE to A-level students. For degree level, I would instead recommend the CASIO CG-50.

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-03-06*