Ideal for students studying general math, pre-algebra, algebra, geometery and trigonometry. Performs more than 130 scientific and math functions. Hard cover protects calculator from scratches. Auto power down feature. Permitted for use on AP Chemistry, AP Physics, PSAT/NMSQT, SAT I, SAT II, Math IC and Math IIc tests. Power Source(s): Battery; Display Notation: Numeric; Number of Display Digits: 10; Display Characters x Display Lines: 10 x 1.