The Casio FX-991EX Classwiz Scientific Calculator in black is a handheld device ideal for students, professionals, and anyone in need of advanced mathematical capabilities. This model from Casio features a regular-sized LCD display with a backlight for easy viewing. Powered by both solar energy and battery, this scientific calculator is not only efficient but also environmentally friendly. With features such as calculus functions and a range of key sizes, the Casio FX-991EX is a reliable tool for precise calculations on the go.
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