Scientific Calculators For Students, 3in1 Secondary-school

[Funtional but Simple-to-use] Ideal for use in secondary schools, the Scientific Calculator features 240 built-in mathematical functions, allowing students to quickly tackle a variety of statistical, trigonometric and numerical equations. [3 in 1] Resolving or jotting down math inspiration everywhere, is an awesome combination of scientific calculator, reusable writing tablet and stylus. "Paper" and pen become handy from now on. [Legibility and Usability] Powered by CR2023 battery and solar panel, this standard calculator has high contrast LCD display and highly visible tough plastic keys yet sensitive and soft for fingertips.