---
product_id: 50525483
title: "Casio FX991EX Scientific Calculator 192x63"
brand: "casio"
price: "0 zł"
currency: PLN
in_stock: false
reviews_count: 13
url: https://www.desertcart.pl/products/50525483-casio-fx991ex-scientific-calculator-192x63
store_origin: PL
region: Poland
---

# Built-in advanced stats: Binomial, Poisson, Normal 192x63 high-def natural textbook display Solve up to 4th degree polynomial & 4x4 matrices Casio FX991EX Scientific Calculator 192x63

**Brand:** casio
**Price:** 0 zł
**Availability:** ❌ Out of Stock

## Summary

> 📐 Elevate your calculations—where precision meets next-gen power!

## Quick Answers

- **What is this?** Casio FX991EX Scientific Calculator 192x63 by casio
- **How much does it cost?** 0 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/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

- • **Matrix Mastery:** Handle 4x4 matrices for determinants, inverses, and products—perfect for higher-level math and engineering tasks.
- • **Algebraic Powerhouse:** Solve polynomial equations up to 4th degree and systems of 4 variables with ease—no graphing calculator needed.
- • **Smart QR Code Integration:** Generate QR codes for instant smartphone access to detailed results and graphs—seamless tech synergy.
- • **Advanced Statistical Functions:** Calculate binomial, Poisson, and normal distributions instantly—ditch the statistical tables forever.
- • **Crystal-Clear Natural Textbook Display:** Experience razor-sharp, multi-line visuals that make complex equations and fractions effortlessly readable.

## Overview

The Casio FX-991EX is a cutting-edge scientific calculator featuring a high-definition natural textbook display, advanced algebraic and statistical functions, and matrix operations up to 4x4. Designed for secondary and university students, it supports polynomial solving up to quartics, comprehensive probability distributions, and innovative QR code output for enhanced learning and sharing. Lightweight and battery-powered, it’s the ultimate tool for mastering math with professional ease.

## 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 | 21,683 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 69 in Scientific Calculators |
| Brand Name | Casio |
| Calculator Type | Engineering/Scientific |
| Colour | Black |
| Compatible Devices | Devices with QR code readers, like smartphones and tablets |
| Customer Reviews | 4.6 4.6 out of 5 stars (15,197) |
| Display Type | Natural Textbook Display |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 16.6L x 7.7W centimetres |
| Item Weight | 200 Grams |
| Manufacturer | Casio |
| Manufacturer Part Number | FX-991EX |
| Model Name | Fx 991 Ex |
| Model Number | FX-991EX |
| Number of Batteries | 1 LR44 batteries required. |
| Power Source | Battery Powered |
| Unit Count | 1.0 count |

## 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.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pl/products/50525483-casio-fx991ex-scientific-calculator-192x63](https://www.desertcart.pl/products/50525483-casio-fx991ex-scientific-calculator-192x63)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-26*