Precedence of operators

A very important issue has to do with the actual order in which operations are performed when two or more operators are used in the same expression.

For example, consider the following expression:

(2*a + 3)

Two ways to evaluate

There are two different ways that this expression could be evaluated:

• Add a to 3 and multiply the sum by 2
• Multiply a by 2 and add the product to 3