ROATEE 991ES MAX Scientific Calculator | with LCD Notepad, 417 Functions, Dual Power Supply, Portable

Product Description

The Rechargeable ROATEE 991ES MAX Scientific Calculator is a foldable and portable device that comes with a CalcNote Multiview 4-Line Display and LCD Writing Tablet Notepad. It is ideal for business, high school, university students, and teachers. It is available in black. This product combines scientific calculator and note-taking features, offering users a unique experience. You can take notes while performing calculations, allowing you to use your time more efficiently. The device's LCD writing tablet allows you to easily take notes with its special pen. You can erase and rewrite your notes if you wish. Thanks to the Multiview feature, you can view 4 different calculations on the screen at the same time, making it easier to follow complex operations.ROATEE 991ES MAX supports 417 different functions. It helps you in many areas such as general mathematics and science, pre-algebra, algebra 1 and 2, geometry, statistics and regression calculations, calculus, fractions, decimals, calculations related to certain number systems (BASE-N, binary, octal, decimal, hexadecimal), complex number calculations, equation solving (EQN), matrix operations (MATRIX), table creation (TABLE), vector operations (VECTOR) and equation solving (SOLVE). It also has advanced features that you can use in science branches such as biology and chemistry. It offers a more user-friendly experience thanks to its memory function.Thanks to its dual power source feature, it works with both solar energy and a rechargeable battery. In this way, it reduces the frequency of battery replacement and offers environmentally friendly use. Its rechargeable battery helps you save energy, while its solar energy support allows you to continue using your calculator even if your battery runs out. Thanks to its highly durable, drop-resistant body, it offers long-lasting use. With its lightweight design (only 5 ounces) that easily fits in your pocket, you can always carry it with you in your business and school life. Thanks to the fraction and decimal conversion feature, you can view your calculation results in the format you want.

Product Features

• 417 different functions
• Note-taking with LCD writing tablet
• 4 calculations simultaneously with Multiview feature
• Solar energy and rechargeable battery
• Drop-resistant body
• Lightweight and portable design
• Fraction and decimal conversion
• General mathematics and science support
• Statistics and regression calculations
• Complex number calculations
• Matrix and vector operations
• Equation solving (EQN, SOLVE)
• Binary, octal, decimal, hexadecimal number systems support
• Memory function

Additional Information

The product comes in MathI (input) / MathO (output) mode by default. This mode preserves data integrity when working with decimals and displays expressions like those in textbooks (Natural Textbook). If you want to switch the output to a different mode, follow the steps [Shift] → [Function] → [1] (select input/output mode) → [2] (decimal output mode) or [3] (linear output mode). Package contents: 991ES MAX scientific calculator * 1, USB-C charging cable * 1, user manual * 1, special packaging box * 1.

Scientific Calculator, LCD Writing Tablet, 991ES MAX, Foldable Calculator, Rechargeable Calculator, Multiview Display, Mathematics, Statistics, Equation Solving, Portable Calculator