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The TI-83/84 Plus is designed to obey the standard order of operations when evaluating mathematical
expressions. **Click here for the TI-83 order of operations. Operations are performed in this order (left to right at each level):
- Expressions within parentheses (innermost parentheses first)
- Functions that precede the argument (like log(2) or negation)
- Functions that follow the argument (like 2!)
- Exponents and roots
- Multiplication and division, including implied multiplication
- Addition and subtraction
A complete list of the order of operations is provided in the Guidebook
(see EOS). The real key to avoiding errors when evaluating expressions
is a liberal and careful use of parentheses. Parentheses allow you
to control which operation is performed first, and to enter an expression
so that the TI-83/84 Plus will correctly interpret it. As a general
rule of thumb, use parentheses whenever you are in doubt about the
order of operations.
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