【Instant Purchase OK & Anonymous Delivery】 Adopting a high-performance LSI and a high-definition full-dot LCD, this calculator achieves excellent calculation capabilities and easy-to-read Japanese display. The ClassWiz series is easy to understand for function settings and operation commands. It is equipped with basic function calculations, statistical calculations, as well as advanced calculations and convenient functions. With natural textbook display, which can display fractions, √, and even differential/integral symbols just like in science and engineering books and textbooks, it supports research and learning. Since the calculation formula and answer can be displayed simultaneously, you can check and correct the key input contents. ★ There are almost no scratches or stains. ★ The back of the main unit is slightly discolored by the sun, but there is no problem with the operation.