The EL501WBBK 10-Digit calculator is a great companion for any math student. It covers a range of potential math problems with the ability to perform over 130 scientific and math functions. It features a large, one-line, ten-digit LCD display that makes it easy to read numbers as they're entered and answers to equations. The calculator is battery powered with automatic shut-down, ensuring that power is conserved and that it is ready to go when you are. The protective hardcover protects the calculator from scratches and provides durability for years of use. The EL501WBBK can is ideal for students studying general math, pre-algebra, algebra, and trigonometry.