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How-To Geek on MSNHow to Use Boolean Logic in Microsoft Excel
Boolean logic: The method used to evaluate conditions, returning either TRUE or FALSE. Logical functions: The primary logical ...
Boolean operators and truth tables Computers use electrical circuits which have two states – on or off. This can also be represented as 1 or 0 or True and False.
Identifying keywords or phrases and then connecting them using Boolean operators (AND, OR, and NOT), along with the other tools in this guide, can help you narrow, expand, and/or refine your searches ...
You can use the NOT logical operator in combination with any SAS and WHERE expression operator. And you can combine the NOT operator with AND and OR. For example: where skill not eq 'cobol' or years ...
She then teaches her friend about Boolean Operators and shows how they help to make searches effective. This clip is from the series How to Think Like a Computer.
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