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Scientific Calculators for Students 991ES Office Calculators with Notepad Desktop, ROATEE 4-Line Display Calculator with LCD Writing Tablet, Battery Rechargeable Power Calculator School Supplies
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Scientific Calculators for Students 991ES Office Calculators with Notepad Desktop, ROATEE 4-Line Display Calculator with LCD Writing Tablet, Battery Rechargeable Power Calculator School Supplies
The 991EX Scientific Calculator combines advanced functionality with user-friendly design, making it perfect for both school and business environments.
Scientific Calculators for Students 991ES Office Calculators with Notepad Desktop, ROATEE 4-Line Display Calculator with LCD Writing Tablet, Battery Rechargeable Power Calculator School Supplies
Item #: 235028943

Scientific Calculators for Students 991ES Office Calculators with Notepad Desktop, ROATEE 4-Line Display Calculator with LCD Writing Tablet, Battery

Item #: 235028943

STD 1130890

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The 991EX Scientific Calculator combines advanced functionality with user-friendly design, making it perfect for both school and business environments.
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What Stands Out

Dual Power Source
Harness the convenience of both rechargeable battery and solar power, ensuring that the calculator is always ready for use—ideal for students and professionals on the go.
6-Line Multiview Display
Feature a horizontal 6-line display that allows users to view multiple calculations simultaneously, enhancing clarity and efficiency during complex computations.
Erasable LCD Tablet
Includes an erasable LCD writing tablet, perfect for jotting down notes and ideas without the need for paper, contributing to eco-friendliness while maximizing productivity.

Product Details

Shop Scientific Calculators for Students 991ES Office Calculators with Notepad Desktop, ROATEE 4-Line Display Calculator with LCD Writing Tablet, Battery Rechargeable Power Calculator School Supplies online at a best price in São Tomé and Príncipe. B0DJ6R97B8
Calculator TypeEngineering/Scientific
Power SourceBattery Powered
Screen Size6.2 Centimeters
Number of Batteries1 CR5 batteries required. (included)
Compatible Devices[Many]
Display TypeLCD
ColorBlack
Enclosure MaterialAcrylonitrile Butadiene Styrene (ABS)
Item Dimensions L x W6.32"L x 3.28"W (16.1 cm)
BrandROATEE
Model Name991 ES
ManufacturerROATEE
Mfr Part NumberAB0607
Model NumberAB0607

Dangerous Goods

To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.

Who Should Buy?

Suitable For
  • High School Students

    Equipped with 552 functions, it assists in advanced calculations and problem-solving for high school math subjects.

  • College Students

    Ideal for college-level coursework, especially in science and engineering courses where complex calculations are required.

  • Researchers

    Researchers can utilize the multiview 6-line display for detailed data analysis and when performing scientific computations.

Not Suitable For
  • Casual Users

    Individuals needing basic arithmetic functions may find this calculator overly complex and unnecessary for their requirements.

Product Description

Scientific Calculators for Students 991ES Office Calculators with Notepad Desktop, ROATEE 4-Line Display Calculator with LCD Writing Tablet, Battery Rechargeable Power Calculator School Supplies

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What functions does the 991EX 552 Functions Desktop ROATEE Scientific Calculator offer?

    Answer: The 991EX Scientific Calculator boasts a total of 552 functions, making it incredibly versatile for a variety of mathematical problems. It supports algebraic calculations, calculus, statistics, and matrix operations, catering specifically to high school and college students. Its advanced abilities allow students to solve complex equations, perform regression analysis, and even visualize functions. This extensive functionality can enhance understanding and performance in mathematical courses and research projects.
  • Question: Is the 991EX calculator suitable for college-level math courses?

    Answer: Absolutely! The 991EX is designed to assist students in various college-level math courses, including calculus, linear algebra, and statistics. Its comprehensive feature set allows users to handle intricate mathematical operations efficiently. Students can use it to calculate derivatives, integrals, and create detailed statistical reports, ensuring they are well-equipped for their academic challenges and maximizing their study efficiency.
  • Question: How does the rechargeable and solar power feature work?

    Answer: The 991EX calculator utilizes both rechargeable batteries and solar power, providing dual energy sources for uninterrupted use. During daylight hours, the solar panel captures sunlight to charge the device, significantly extending its lifespan. This feature is particularly beneficial for students who use the calculator regularly, ensuring that they won’t run out of power during crucial study sessions or exams, making it an eco-friendly choice as well.
  • Question: What is the Multiview 6-Line Display and how does it benefit users?

    Answer: The Multiview 6-Line Display on the 991EX allows users to view multiple calculations simultaneously. This feature enhances clarity, as students can see inputs, outputs, and intermediary steps without toggling between different screens. The capacity to visualize several lines of data at once reduces errors and makes it easier to follow complex calculations, proving invaluable during exams and collaborative study sessions.
  • Question: Can the LCD writing tablet be used for both notes and calculations?

    Answer: Yes, the erasable LCD writing tablet paired with the calculator provides a multifunctional platform for both calculations and note-taking. Users can quickly jot down ideas or perform calculations on the tablet and effortlessly erase content as needed. This flexibility is ideal for students during lectures or study groups, allowing them to visualize their thought processes and calculations clearly until they are ready to save or share their notes.
  • Question: Is the calculator user-friendly for those new to advanced mathematics?

    Answer: The 991EX is designed with user-friendliness in mind, making it accessible for those new to advanced math. Its intuitive interface and well-organized functions allow beginners to navigate easily without feeling overwhelmed. Additionally, included manuals and guides help users familiarize themselves with its features, ensuring they can take full advantage of its capabilities, whether they're just starting or progressing in their studies.
  • Question: What types of students and professionals can benefit from this calculator?

    Answer: The 991EX is perfect for high school students, college graduates, and researchers engaged in mathematics-intensive fields. High schoolers can utilize it for foundational studies, while college students can tackle advanced coursework in engineering, physics, or mathematics. Researchers also find it useful for data analysis and modeling. Its diverse applications make it a valuable tool across various academic and professional settings.
  • Question: Does the calculator support graphing or visual representation of functions?

    Answer: While the 991EX does not function as a graphing calculator, it does offer some functionalities such as numerical analysis and visual outputs of data points, which can aid in understanding mathematical concepts. It provides detailed calculations related to equations, allowing users to better interpret results and concepts visually. This is particularly beneficial for students in courses where understanding relationships between variables is essential.
  • Question: What materials or resources are included with the purchase of the calculator?

    Answer: With the purchase of the 991EX calculator, users typically receive instructional manuals and guides designed to help maximize the use of its features. These resources provide detailed explanations on setting up, operating, and troubleshooting the device. Additionally, it may include tips and example problems, which can greatly assist students in becoming accustomed to the functionalities and capabilities of the calculator.
  • Question: Where can I buy the 991EX 552 Functions Desktop ROATEE Scientific Calculator?

    Answer: You can buy the 991EX 552 Functions Desktop ROATEE Scientific Calculator from Ubuy, an excellent e-commerce platform that offers a wide range of products. Ubuy is known for its reliable service and customer satisfaction, making it a preferred choice for many. By shopping on Ubuy, you can ensure a seamless purchasing experience while accessing a diverse selection of calculators and academic tools tailored for students in São Tomé and Príncipe.

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STD 1130890

Order now and get it around Sunday, August 09

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
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Fastest cross-border delivery

Features & Benefits

  • 552 functions for diverse calculations including math, science, and statistics.
  • Integrated notepad and stylus for easy note-taking during calculations.
  • Multiview display shows 6 calculations simultaneously for efficiency.
  • Eco-friendly dual power source: rechargeable battery and solar power.
  • Anti-drop design ensures durability and easy portability.
  • Includes 1 calculator, instructions, exquisite packaging, and a carrying case.

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