The Casio Fx-991ex Classwiz Advanced Engineering Scientific Calculator is a handheld unit with regular key size and display size. It is powered by both solar and battery, making it convenient for use in various settings. With its advanced capabilities, including LCD display, backlight, and calculus functions, this calculator is ideal for engineering and scientific applications. The Casio fx-991EX is a reliable and efficient tool for solving complex equations and calculations in a professional environment.
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