Advanced D.A.L. Series scientific calculator is ideal for high school students, college students and professionals. Extra large display offers 12 digits and two-line display. Includes 469 functions, 52 physical constants and 44 metric conversions. Scientific calculator features direct algebraic logic, guidance display and answer memory, multiline playback, differential and integral calculus functions, conversions and calculations in HEX, BIN, OCT and decimal, floating or fixed decimal, and nine memories.