Sharp Scientific Calculator (EL-520T) Color: White BASIC DESCRIPTION 420 function 2-Line Display Home function Constant Calculation Multi-Line Playback N. Distribution Calculations Integral + Complex Calculations with Acrylic screen Twin Power Battery MATHEMATICAL FUNCTIONS Built-In Functions - 400+ Entry System - Algebraic (D.A.L.) 1/x, x², square root, % - Pi Key Fractions Numeric Derivative and Integral Complex Number Calculation DIMENSIONS Length Width Height 161mm 80mm 15mm BATTERY TYPE LR44