NEWYES NY-991EX Rechargeable Scientific Calculator with Erasable LCD Writing Tablet-Pink

991EX Scientific Calculator: With 552 functions, ideal for: General math and science, Pre-Algebra, Algebra 1 and 2, Geometry, Statistics and regressioncal collations, Calculus, fractions, decimals, Calculations involving specific number systems (BASE-N, binary, octal, decimal, hexadecimal), Complex number calculations, EQN, Matrix calculations, TABLE, VECTOR, SOLVE, Biology, Chemistry so on and it has memory function calculation more user-friendly Scientific Calculator with Notepad: This scientific calculator for school and business integrates calculation and a piece of paper with a stylus pen. The LCD writing tablet enables you to take notes during the calculation, which is great for studying and work. 👉NOTE: Only when you Unlock the LOCK KEY will the writing area and the erase button work. Multiview: Display shows 6 lines at the same time on screen, greatly improves computational efficiency. Dual Power Solar Panel & Rechargeable: The rechargeable battery is built in this scientif