Sharp EL-531XBGR Engineering/Scientific Calculator
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Performs over 270 advanced scientific functions. Multi-line playback makes scientific equations easier for students to solve. PTA-endorsed for general math, algebra, geometry & trigonometry plus biology, chemistry & general science. Auto power down feature. Permitted for use on AP Chemistry, AP Physics, PSAT / NMSQT, SAT I, SAT II, Math IC & Math IIc tests. Power Source(s): Battery; Display Notation: Numeric; Number of Display Digits: 12.