Difference between revisions of "Boolean"
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====LOGICAL_OPERATOR==== | |||
:Logical operators can be used to build more complex expressions. | :Logical operators can be used to build more complex expressions. | ||
:The logical operators are: | :The logical operators are: | ||
:: | :: <tt>AND</tt> | ||
:: | :: <tt>OR</tt> | ||
:;Considerations: | :;Considerations: | ||
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::* For example: | ::* For example: | ||
::: <tt>((<expression1> AND <expression2>) OR (<expression3> AND <expression_4>))</tt> | ::: <tt>((<expression1> AND <expression2>) OR (<expression3> AND <expression_4>))</tt> | ||
<!-- | <!-- | ||
::: <tt>((<expression1> && <expression2>) || (<expression3> && <expression_4>))</tt> | ::: <tt>((<expression1> && <expression2>) || (<expression3> && <expression_4>))</tt> --> | ||
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Latest revision as of 00:43, 18 October 2011
LOGICAL_OPERATOR
- Logical operators can be used to build more complex expressions.
- The logical operators are:
- AND
- OR
- Considerations
-
- Two subexpressions joined by a logical operator form a logical expression.
- Logical expressions resolve to a Boolean value: 1/0 or TRUE/FALSE.
- Use parentheses--()--to group expressions logically and to join multiple expressions.
- Parentheses are used in pairs; each open parenthesis "(" requires a closing parenthesis ")".
- For example:
- ((<expression1> AND <expression2>) OR (<expression3> AND <expression_4>))