Casio C83 ClassWiz Standard Scientific Calculators FX-991CW-W-DT

Exactly what I wanted

i use it for university classes, it is a bit complex to use and can be very overwhelming for people, if you do not want a hard to use calculator then please go for the 991ex classwiz. for example even to get the factorial its under 3 menus to get to it. anyways that was just about the calculator itself not about the seller, the calculator arrived in time, it is brand new and there are no problems with it whatsoever. order with confidence if you want to order from here. 👌

new Casio calculator is very user friendly for beginners and students, the only bad thing is the cover is a clip making it very easy to come off.

Works great for my CEGEP math

Excellent , very Useful

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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 calculations Vector calculations Base-n conversions (binary, octal, decimal, hexadecimal) Statistical calculations (mean, standard deviation, regression, etc.) Scientific constants readily available for quick use High-resolution display that makes reading long expressions super easy Build 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!