Using Expressions
When you were in school, as you worked on a particularly unpleasant math problem, did you ever complain to a higher power, protesting that you would never use this knowledge in your life? Sorry to break this to you, but your teachers were right—your math skills come in handy in your computer programming. That’s the bad news.
The good news is that the computer does any math you ask it to do. Expressions are used frequently in your computer programs to accomplish tasks such as the following:
• Changing the value of a variable
• Counting the number of times something has happened in a program
• Using a mathematical formula in a program
As you write computer programs, you find yourself drawing on your old math lessons as you use ...
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