Boolean expressions
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Boolean expressions use operators like AND, OR, and NOT to evaluate whether statements are true or false. AND returns true if both statements are true, OR returns true if one statement is true, and NOT returns true if the statement is false. Boolean expressions are used in applications like determining if it is sunny and warm outside or evaluating whether someone is rich or poor.
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Boolean expressions
- 2. Recap : Boolean • Boolean values are either true or false – You either have a light on or a light off
- 3. Boolean Expressions • AND – true if both sides are met • OR – true if one side is true • NOT – true if neither side are true
- 4. Example Boolean Expressions and Outputs Sunny AND Warm = $sunny && $cold Rich OR Poor = $rich || $poor NOT happy = !$happy
- 5. Boolean Operators Operator Description < Less than <= Less than or equal to == Equal to != Not equal to >= Greater than or equal to > Greater than
- 6. Question • Where do you see Boolean used around your home?