The Casio FX-991ES Scientific Calculator is a handheld device with a regular display and key size. It features a solar and battery power source, making it convenient for use in various environments. This model, manufactured in Japan by Casio, is specifically designed for scientific calculations and is ideal for students, professionals, and anyone in need of precise mathematical computations. The natural display adds clarity and ease of reading to the overall functionality of this reliable and durable calculator.
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