Designed with unique features to allow you to enter more than one calculation, compare results & explore patterns, all on the same screen. Enter & view calculations in common Math Notation via the MATHPRINT Mode, including stacked fractions, exponents, exact square roots & more. Quickly view fractions & decimals in alternate forms by using the Toggle Key. Scroll through previous entries & investigate critical patterns as well as viewing & pasting into a new calculation. Explore an x, y table of values for a given function, automatically or by entering specific x values. Power Source(s): Battery; Solar; Display Notation: Numeric; Number of Display Digits: 16; Display Characters x Display Lines: 16 x 4.