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Item #:
81277469
CASIO FX-991CW Advanced Scientific Calculator, Black, S
Item #:
81277469
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Imported from Japan store
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A high performance scientific calculator with high resolution display increasing the amount of information displayed and super fast calculation speed for testing or performing the most advance mathematics.
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What Stands Out
Comprehensive Functionality
The CASIO FX-991CW offers over 500 scientific functions, making it ideal for advanced mathematics, engineering, and physics, catering to students and professionals alike.
User-Friendly Design
Featuring a clear display and intuitive interface, this calculator ensures ease of use, helping users navigate complex calculations effortlessly, enhancing learning and productivity.
Durable Build
With a robust design and long-lasting battery life, the FX-991CW withstands rigid daily use, ensuring reliability for students and professionals in various settings.
Product Details
- NATURAL TEXTBOOK DISPLAY - Shows equations, fractions and symbols as shown in the textbook to help deepen understanding and reduce errors
- HIGH DEFINITION 4 TONE DISPLAY - Enhanced screen with quad-tone shadow provides increased visibility and helps you keep track of your cursor while writing or editing expressions
- Memory & Math Catalog - Store and recall up to 9 variables including integrations, calculations, and functions. A feature educators demand for memory during sessions. Access to 47 constants, 40 conversions and advanced mathematical functions through the intuitive math catalog
- 540 Advanced Features - Perform numerical integral and fractions, 4x4 matrix operations, spreadsheet style data display and more
- QR FEATURES & DURABLE DESIGN - Scan QR code and graphing results with ClassPad.net. Includes rounded keys and anti-slip hard case for classroom and examination
| Calculator Type | Engineering/Scientific |
| Power Source | Solar powered |
| Screen Size | 2.25 Inches (5.7 cm) |
| Number of Batteries | 1 LR44 batteries require. (included) |
| Display Type | LCD |
| Color | black |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 16L x 7.6W cm |
| Brand | Casio |
| Model Name | FX-991CW |
| UPC | 889232615011 |
| Manufacturer | Casio |
| Mfr Part Number | FX-991EX |
| Model Number | FX-991CW |
| Item Weight | 3.35 Ounces (94.97 grams) |
| Item type name | Casio Advanced Scientific Calculator |
| Unit Count | 1.0 Count |
Who Should Buy?
-
students
Ideal for high school and college students tracking mathematics, science, and engineering courses requiring advanced calculations.
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Engineers
Beneficial for engineers needing a reliable tool for complex calculations in design, analysis, and problem-solving tasks.
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Researchers
Perfect for researchers requiring precise computations in statistical analysis and data-driven projects across various fields.
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Casual Users
Not reserved for occasional users who may prefer simpler, more user-friendly calculators for basic arithmetic.
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Elementary Students
May overcome younger students with its extensive features; simpler models are better for foundational math learning.
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Finance Professionals
Limited functionality for complex financial calculations; specialized financial calculators offer better tools and features.
Product Description
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Customer Questions & Answers
-
Question:
What type of math courses is this calculator suitable for?
Answer: This calculator is suitable for middle school, high school and college math courses. -
Question:
How many functions does this calculator have?
Answer: This calculator has 552 functions, including numeric integration/differentiation, vector and inequality calculations, and simultaneous and polynomial solver. -
Question:
Is this calculator solar powered?
Answer: Yes, this calculator is solar powered with battery backup (LR44 button cell battery included).
Scientific FX-991CW Editorial Review
No editorial reviews found
Customer Reviews & Ratings
2140 customers ratings
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5 Star
84%
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4 Star
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3 Star
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PK
Purchase
Verified buyer
“logistcs is very good”
13 June 2026 · via Trustpilot
AN
Akhil
Verified buyer
“Very good and seamless experience, delivery package came in very good condition”
12 June 2026 · via Trustpilot
DK
Dr Kumarasway
Verified buyer
“Heavy import cost and DHL's high delivery fees.”
9 June 2026 · via Trustpilot
JM
J Mama
Verified buyer
“Interesting book and the seller describe it thank you”
8 June 2026 · via Trustpilot
PC
Paritosh
Verified buyer
“Excellent quality and a perfect fit. Description and measurements provided are to the point. Keep them coming more 🤟🏻”
8 June 2026 · via Trustpilot
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Features & Benefits
- High resolution LCD screen allows viewing of more information like spreadsheets and 4x4 matrix calculations.
- Numeric Integration/Differentiation. 552 functions
- Simultaneous and Polynomial Solver
- Solar Powered with Battery Backup (LR44 Button Cell Battery Included)
- Rounded keys for easier inputs
- Works with ClassPad.net
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