The NEW GTX is a upgraded version of the FX-83GTPLUS (the UK`s best selling scientific calculator) containing additional features such as clearer display and menus, faster processor and 14 additional functions. Allowed in every UK exam where a calculator is allowed.Clearer High Res Screen, Faster Processor, 276 Functions.Suitable for Age 11+.LCD display.9 variable.Non-stick keys.16 + 10 + 2 -digit display.Auto shut-off.276 functions.Percentage key and mark up function.Recurring decimals.Prime factorisation.Algebraic logic.Regression analysis.Statistical functions.Hyperbolic.24 levels of parenthesis. General information:Batteries required 1 x AAA (included) .Manufacturer`s 3 year guarantee