This scientific calculator is a classroom essential perfect for use at school but also great for the home or in an office. With 224 functions this calculator is ideal for use in school exams and is suitable from Key stage 3 onwards. Great value for money this Ryman scientific calculator is solar powered with a battery backup. Specifications;. Scientific Calculator. 2 Line Display with 10 Digit Display. 224 Functions. 9 Memory Facilities. Statistical Calculations / Coordinate Conversion / Roots a...