Perfect for students studying general math and science, pre-algebra, algebra, geometry, trigonometry, statistics, biology, and chemistry. Performs 422 advanced scientific, math, and statistics functions. Utilizes a 4-Line, 16 digit WriteView™ display that shows an equation as you would handwrite it. The home key allows users to start fresh from any screen. This calculator has eight temporary memories, four definable memories, one independent memory, and one last answer memory. Complete with equation editing and playback, 1 and 2 variable statistics, normal, stat, and drill modes, seven regression types, and N-BASE calculations: HEX, BIN, DEC, OCT, PEN. Other functions include: logarithms, reciprocals, powers, roots, factorials, trigs, and hyperbolic trigs. Includes a protective hard case and operates on both solar and battery power.