Features time-saving calculations to make short work of complex equations. Ideal for finance, accounting, economics, investment, statistics and other business classes. May use on the CFA exam. Automatic Power Down (ADP) conserves power. Prompted display guides you through financial calculations showing current variable and label. Power Source(s): Battery; Display Notation: Alphanumeric; Number of Display Digits: 10; Display Characters x Display Lines: 10 x 1.