The Casio FX-83GT Plus is the UKs best selling scientific calculator and is allowed in every UK exam where a calculator can be used. Suitable for Key Stage 3, 4, recommended for GCSE, National & Higher, Junior Leaving Certificate. The large natural textbook display (Natural V. P. A. M. ) shows mathematical expressions as they appear in your textbooks, which increases comprehension because results are easier to understand. Suitable for GCSE, A Level and above. LCD display. 9 data memory. Non-stick keys. 10+2+12 -digit display. Auto shut-off. 260 functions. Mathematical functions include prime factorisation, recurring decimal and verify equal expressions. Recurring decimals. Verify function. Prime factorisation. Algebraic logic. Regression analysis. Statistical functions. Hyperbolic. 24 levels of parenthesis. Metric conversions. General information: Batteries required 1 x AAA (included) . Manufacturers 3 year guarantee.