Casio FX-991CW Classwiz Non-Programmable Scientific Calculator

It has a modern design and is very easy to use. It has so many functions that many other calculators of the same range cannot offer. I am using it for my engineering studies and it offers all the functions I need. Buttons are of good quality except I think the on button which is small but overall have a good button quality. It has solar charging too and you won't need to change the battery often. You can carry it in your pocket. You can also change the contrast of the screen for better viewing at different lighting. Casio has made a truly wonderful product.

The Casio FX-991CW Classwiz has a good design that’s clear and easy to use.It offers excellent quality, with fast performance and reliable features.The calculator provides great comfort for daily use, making it perfect for students and professionals.

Light weight. Black in colour. Comfortable to use. Keys/buttons are very smooth. Brightness and readability are not very good but decent enough. Slightly confusing to operate initially but with practice, it gets better. Allows matrix calculations till 4 × 4 matrices. Allows polynomial factorisations till degree 5. And so much more.

The quality of calculator is perfect and the function it can do as a calculator is phenomenal.it is worth of buy . perfect for engineering students.

I've been using the Casio 991CW for a while now, and I must say—it’s hands down one of the most versatile and powerful scientific calculators I’ve ever owned. Whether you're a student, an engineer, or someone who frequently deals with complex calculations, this calculator is an absolute must-have.Key Features That Impressed Me:Matrix Calculations:Handling matrices has never been easier. The 991CW allows you to perform operations like addition, subtraction, multiplication, and even find determinants and inverses with ease. This is a lifesaver for linear algebra problems!Probability Calculations:As someone who deals with statistics, the built-in probability functions are incredibly handy. Calculating combinations, permutations, binomial, and even more complex probability distributions is quick and straightforward.Equation Solving:The equation solver is a gem! Whether it’s linear, quadratic, cubic, or even systems of equations, the Casio 991CW handles them effortlessly. No more struggling with lengthy manual calculations.Integration & Differentiation:Yes, you read that right—it can perform both definite integrals and derivatives! This feature is a game-changer for calculus students. It provides accurate results, saving time and reducing errors during complex problem-solving.Other Useful Features:Complex number calculationsVector calculationsBase-n conversions (binary, octal, decimal, hexadecimal)Statistical calculations (mean, standard deviation, regression, etc.)Scientific constants readily available for quick useHigh-resolution display that makes reading long expressions super easyBuild Quality & Usability:The sleek, modern design feels premium, and the interface is intuitive. The Natural Textbook Display makes it easy to enter and view expressions just as they appear in textbooks, which is incredibly helpful for accuracy.Battery Life:It’s solar-powered with battery backup, ensuring it’s always ready when you need it most.Final Thoughts:The Casio 991CW is not just a calculator; it’s a comprehensive math assistant. It handles everything from basic arithmetic to advanced calculus and statistics with impressive precision. If you’re in the market for a reliable, feature-packed scientific calculator, look no further. This gorgeous-looking calculator is absolutely value for money!Highly recommended!

Good quality, looks great, works well. Good for gcse exams.

Amazing feel in hand and Comfortable and easy to use. Very Good Product. Recommended for all students.

Good product, value for money.