Casio FX-991ES Plus Calculator

Product Overview: The Casio FX-991ES Plus offers advanced features for solving complex mathematical, scientific, and engineering problems with ease. Key Features: ‣ Natural textbook display enhances clarity for input and output. ‣ 417 built-in functions support a variety of advanced operations. ‣ Dual power ensures consistent functionality in diverse environments. Technical Specifications: ‣ Material: Robust plastic body for reliable performance. ‣ Performance: Powered by solar energy and an LR44 battery backup. ‣ Compatibility: Suitable for academic and technical fields.