Casio FX-991ES Plus Scientific Calculator

This model is now obsolete and has been replaced with the Casio FX-991EX Advanced Scientific / Engineering calculator” Recommended for Advanced GCSE, A/AS level and Highers This ever popular model is now available with Random Integers and an improved equation mode Solar Powered with Battery backup The large Natural Textbook Display (Natural-V.P.A.M.) shows mathematical expressions like roots and fractions as they appear in your textbooks which increases comprehension because results are easier to understand 3 year guarantee NB. This Model can not be used in some Exams in Eire. Please check first. User manual (PDF )can be found below.