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Item #:
218228598
Casio FX-991EX Scientific Calculator FX 991 EX Classwiz 552 function
Item #:
218228598
SAR 231
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Equipped with 552 scientific functions, this calculator supports advanced calculations like statistics, calculus, and matrix operations.
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What Stands Out
Comprehensive Functions
With 552 built-in functions, the Casio FX-991EX ClassWiz covers a wide range of engineering and scientific calculations, meeting the diverse needs of students and professionals alike.
High-Resolution Display
The ClassWiz features a large, high-resolution screen that enhances readability, making it easier to view complex equations and data at a glance, reducing eye strain during intensive study sessions.
User-Friendly Interface
Designed for intuitive use, the calculator’s straightforward menu and quick access to functions streamline operations, enabling users to calculate efficiently without the hassle of navigating complex menus.
Product Details
| Brand | Casio |
| GTIN | 4971850092315 |
| Size | Handheld |
| Display Size | Regular |
| Type | Scientific, Basic |
| Weight | 0.44 pounds (200 grams) |
Who Should Buy?
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Engineering Students
Ideal for engineering students needing advanced calculation functionalities and graphing capabilities for complex subjects.
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Mathematics Professionals
Great for professionals in mathematics who require extensive features for calculations, statistical analysis, and problem-solving.
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Exam Preparation
Perfect for students preparing for standardized tests that allow scientific calculators with comprehensive function sets.
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Casual Users
Not suitable for casual users who only need basic functions for simple calculations and arithmetic.
Product Description
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Customer Questions & Answers
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Question:
What subjects is this calculator suitable for?
Answer: It is ideal for biology, chemistry, physics, and advanced mathematics. -
Question:
Does it have a user-friendly interface?
Answer: Yes, it displays formulas and expressions in a clear textbook format. -
Question:
Is this calculator durable?
Answer: Yes, it is constructed with sturdy materials for long-term use.
casio Editorial Review
The Casio FX-991EX ClassWiz Engineering Scientific Calculator has garnered positive feedback from users, especially among engineering students and professionals. A significant upgrade from its predecessor, the FX-991ES, this calculator is praised for its enhanced display, which makes it easier to read and work with complex mathematical expressions. Users appreciate the clarity and crispness of the screen, which significantly improves usability, particularly in a field where precision is essential. Beyond its visual enhancements, the calculator boasts an impressive array of features, including 552 functions that cater to various mathematical needs, such as solving equations, performing integrals, and converting between different number bases. Users have noted its speed advantages over earlier models, with faster computations and the ability to handle more complex problems, including polynomial equations up to quartics. However, some users express disappointment with the spreadsheet function, which has limitations, particularly regarding data preservation when the calculator is powered off. Despite this shortfall, the overall sentiment remains overwhelmingly positive; the Casio FX-991EX ClassWiz is regarded as a valuable tool that significantly simplifies engineering calculations. In summary, the Casio FX-991EX ClassWiz stands out as an essential instrument for both students and professionals in the engineering field, offering a blend of durability, advanced functionality, and ease of use. **
Customer Reviews & Ratings
225 customers ratings
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Pros
- Enhanced display improves readability and usability.
- Fast performance with complex calculations.
- Extensive range of functions (552 capabilities).
- Durable design suited for daily use by students.
- Strong support for engineering-specific operations like base conversion.
Cons
- Limited spreadsheet function, with data loss upon power off.
Platform Trust & Buyer Confidence
MA
Mekki
Verified buyer
“Arrive before time, excellent products”
9 July 2026 · via Trustpilot
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Farrah
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“A very big Thank you to HUDA and the Ubuy Team in helping to send my order to me yesterday!! Order # 62606425316 Customer service and operations is top for this online shopping company and I am very satisfied with the way they handle issues. THANK YOU once again!!”
25 June 2026 · via Trustpilot
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“Good experience of shopping through Ubuy.”
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Mohamed
Verified buyer
“We feel very good about the delivery time, and the materials we received matched our order.”
14-Jul-26 · via Trustpilot
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Essam
Verified buyer
“Perfect service and fast delivery.”
16-Jul-26 · via Trustpilot
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SAR 231
Order now and get it around Saturday, October 17
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Only 1 item left in stock.
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Features & Benefits
- Comprehensive functionality with 552 scientific functions.
- Ideal for middle, high school, and college students.
- User-friendly interface displays formulas in textbook format.
- Large high-resolution screen shows graphs and equations simultaneously.
- Durable construction ensures long-term reliability.
- Perfect for subjects like biology, chemistry, and physics.
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