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Boolean Operators | Quick Guide, Examples & Tips - Scribbr
Learn how to use Boolean operators such as AND, OR, NOT, and parentheses to refine your search results in databases and search engines. Find out how to use proximity operators such as NEAR, WITHIN, and SENTENCE to filter results based on the proximity of keywords.
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boolean operators - joostdevree.nl
boolean operators. Boolean operators (functies) zijn hulpmiddelen om de uitvoer te herleiden op basis van de "waarde" van invoerparameters (criteria) en de actie (gelijkheid e.d.). Booleaan functies worden vooral gebruikt in computer- en (elektro)technische toepassingen en bij de verzamelingenleer (o.m. in zoekmachines). Boolean functies zijn ...
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Searching with Boolean Operators - EBSCO Information Services
Learn how to use and, or and not to create broad or narrow searches in EBSCO Discovery Service. See examples, notes and tips on using parentheses and phrases with Boolean operators.
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Boolean logical operators - AND, OR, NOT, XOR
Nullable Boolean logical operators. For bool? operands, the & (logical AND) and | (logical OR) operators support the three-valued logic as follows: The & operator produces true only if both its operands evaluate to true. If either x or y evaluates to false, x & y produces false (even if another operand evaluates to null). Otherwise, the result ...
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Research Guides: Boolean Operators: A Cheat Sheet: Home
Nesting, or mixing the Boolean operators, is a way to combine several search statements into one comprehensive search statement. Use parentheses ( ) to separate keywords when you are using more than one operator and three or more keywords. The order in which the operations (AND, OR , NOT) are processed can vary
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What is a Boolean? - Computer Hope
Learn what a boolean is in computer science, how it is used in programming, and what are the common boolean operators such as AND, OR, NOT, and XOR. See examples of boolean logic and algebra, and how to pronounce the word.
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A Quick Guide on Boolean Operators with Examples
Learn how to use Boolean operators (AND, OR, NOT) to combine and manipulate search terms and retrieve specific information from databases and search engines. Explore the importance of Boolean operators in information literacy, data science, online security, and more.
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Boolean Operator - an overview | ScienceDirect Topics
Learn what a Boolean operator is and how it works in computer programming languages such as IDL. See how to use not, and, or, and xor operators with different data types and compare them with Venn diagrams.
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2.1. Boolean operators - InfoSkills for Economics and Management ...
Boolean operators make it possible to combine search terms in a search. They are named after George Boole, a 19th-century British mathematician who invented Boolean algebra, the mathematical system that underlies logic in computers. Boole's work laid many of the foundations for the digital revolution.
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Boolean Algebra | GeeksforGeeks
Learn about Boolean algebra, a type of algebra that operates on binary values and logic operations. Find out the basic operations, expressions, laws, theorems, and applications of Boolean algebra.