The Casio Fx-991ex Classwiz Advanced Engineering Scientific Calculator is a handheld device with a regular-sized display and key size. It is powered by both solar and battery sources, making it convenient for use in various settings. This scientific calculator, part of the Casio fx-991EX model range, features an LCD display with a backlight for clear visibility. With its advanced functions including calculus capabilities, this calculator is ideal for business, office, and industrial applications where precise calculations are essential.
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