The fx-85GTX is one of Ireland's Top Scientific Calculator, having a solar power panel to ensure no loss of battery during those crucial exams! This is the upgraded version of the fx-85GT PLUS, containing additional features such as clearer display, clearer menus, faster processor and 14 additional functions which are also allowed in all State Examinations (Recommended and approved for Key Stages 3 & 4 including GCSE, National and Higher, Junior and Leaving). 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.