The black Casio FX83 GTX is the perfect scientific calculator for those studying mathematics at higher levels or professionals. With a sharp and clear display, expressions and functions appear as they would if written making it easier to understand and use. Functions on the calculator are expanded including advanced statistics, ratio, and digit separator. With simplified menus and faster processor, it is easier and quicker to find and use the function you need. The built-in automatic power off mode means that you\'re never caught without your calculator when it is needed and a protective lid slides on to prevent the display from getting scratched or damaged when in a bag. The Casio FX83 GTX is also available in a grey version. - Brand: Casio - 274 functions - Large clear natural textbook display - Protective cover - Battery powered with included AAA battery