Always get the right answer with this Casio FX-83GT scientific calculator. Approved for use in most school and college exams, this calculator features a clear two-line LCD screen which can display equations naturally, as you'd see them in a textbook. It's powered by a long-life replaceable battery and boasts 260 functions, ranging from hyperbolic trigonometry to fraction simplification. The calculator has sturdy plastic buttons, including special blue controls for navigation.