Performs more than 270 advanced functions and has multiline equation playback. Ideal for students studying general math, algebra, geometry and trigonometry, and can be used for statistics, biology, chemistry and general science. Glass top design for clearer, easier reading of two-line display. Auto power down feature. Power Source(s): Battery; Display Notation: Alphanumeric; Number of Display Digits: N/A; Display Characters x Display Lines: 10 + 2 x 2.