The fx-83GTX replaces the Casio Fx-GT scientific calculators which takes Ireland's Number One Scientific Calculator a step further, by offering additional features such as clearer display, clearer menus, faster processor and 14 additional functions. Allowed in every Irish exam where a calculator can be used. 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.
Book by K. A. Stroud, Dexter J. Booth
Note: Not the latest edition but an excellent book all the same!!