The Casio FX-83GTX features a clearer display, simpler menus a faster processor, 14 additional functions and is available in multiple colours. With a large textbook display, mathematical expressions such as roots and fractions appear as they would within a textbook making it easier to use and understand. This upgraded version of the GTX includes several new features including but not limited to; ratio, advanced statistics and a digit separator. Perfect for use in Key Stages 3 and 4 as well as GCSE, National, Higher, Junior and Leaving levels of education. Specifications Large clear natural textbook display/ Natural V.P.A.M Slide-on hard protective case Battery-powered (Includes 1 x AAA Battery) Prime Factorisation Enhanced calculations of mathematical priorities Auto power off Recurring decimal display 274 Functions available Ratio Digit Separator Advanced Statistics Advanced Tables Variables List Recommended for use within KS 3 and 4, GCSE, National and Higher, Junior and Leaving certificates Approximate dimensions (mm) H 14 W 77 D 166 Colour: Black