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