Although the article is for the Casio fx-991MS calculator (and all the tricks mentioned here are guaranteed to work on it), the calculator features and underlying mathematical principles for the tricks are quite general and can be applied to many other calculators as well. On this page, I will show you some advanced and clever tricks that you can do with the calculator. Being able to use these features can also be helpful on tests and exams where scientific calculators are allowed but more powerful graphing calculators are not. Some of these can greatly reduce the effort to solve problems, while others can be abused in interesting and fun ways.
The Casio fx-991MS is an affordable scientific calculator with many powerful features.
