Sharp EL-W516B Scientific Calculator with WriteView (Black)

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Scientific calculator performs 556 advanced scientific functions and uses WriteView Technology, a four-line 10-digit LCD and Multi-Line Playback to make scientific equations easier for students to solve and appear as written in a textbook. Equation Solver allows you to solve three simultaneous equations. Ideal for studying general math, algebra, geometry, trigonometry, statistics, biology, chemistry, and general science. Functions include 10 parenthesis levels, nine symbols, fractions calculation, polynomial root finder, logic operators, DRG conversions, one/two variable statistic calculation, seven regression types, factorials, last answer recall and last-digit correction. Modes include normal, stat, drill, complex, matrix, list and equation. Four programmable keys allow quick operation. Calculator has nine memories and runs on twin power sources (battery and solar).