Casio Scientific Calculator FX-991EX

As exam boards abandon the archaic practice of handing out printed statistical tables, the Casio fx-991EX Classwiz has become the baseline calculator for students who are too mean or too poor to invest in a good graphics display calculator.However, for the price, this is a truly ...As exam boards abandon the archaic practice of handing out printed statistical tables, the Casio fx-991EX Classwiz has become the baseline calculator for students who are too mean or too poor to invest in a good graphics display calculator.However, for the price, this is a truly excellent calculator that offers a multitude of features. But, to get the best out of it, you need to learn how to use it effectively.