The EL-506WBBK performs over 469 advanced scientific functions with a 12-Digit (or 10 digit and 2 exponent) 2-line LCD screen and Multi-Line Playback to make scientific equations easier for students to solve. It is ideal for students studying general math, algebra, geometry, trigonometry, and calculus. In addition, it can be used for statistics, biology, chemistry, and physics. 1 and 2 Variable Statistics including Standard Deviation and Regression Analysis functions (6 Regression types) Random numbers Sin, Cos, Tan, and Inverse Hyperbolic Function and Inverse Deg/Rad/Grad Mode DRG Conversion Includes protective cover Features: * Direct Algebraic Logic * Extra large display * 12-digit two-line display * Multi-Line "playback" * Differential and integral calculus functions * 440 mathematical functions * Protective hard case Technical Details * Advanced Direct Algebraic Logic Series scientific calculator * Ideal for high school students, college students, and professionals * 440 functions including differential and integral calculus * Large 12-digit, 2-line display, multi-line playback * Convenient solar and battery power supplies UPC Code: 074000017696