Features time-saving calculations to make short work of complex equations. Ideal for finance, accounting, economics, investment, statistics & 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 & label. Power Source(s): Battery; Display Notation: Alphanumeric; Number of Display Digits: 10; Display Characters x Display Lines: 10 x 1.