Designed for calculating algebra, calculus, and trigonometry equations, this calculator performs 240 scientific and math functions. It features a 10-digit display and two display lines to allow for more complex formulas. The calculator's convenient hard shell sliding cover protects it from scratches. Auto shutoff feature helps conserve battery power. Power Source(s): Battery; Display Notation: Numeric; Number of Display Digits: 10; Display Characters x Display Lines: 10 x 2.Package Includes: Battery; Hard Case