"Performs basic scientific and trigonometric functions. Ideal for general math, pre-algebra, algebra 1 and 2, trigonometry and biology. Features conversions and fraction calculations. Power Source(s): Battery Display Notation: Numeric. Unit of Measure : Each" *** Please Note: Photo may not represent actual item, refer to full description for detailed accurate product information Performs basic scientific and trigonometric functions. Ideal for general math, pre-algebra, algebra 1 and 2, trigonometry and biology. Features conversions and fraction calculations. Power Source(s): Battery Display Notation: Numeric. Unit of Measure : Each