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1 Boolean expression
"An expression that yields a Boolean value (true or false). Such expressions can involve comparisons (testing values for equality or, for non-Boolean values, the < [less than] or > [greater than] relation) and logical combination (using Boolean operators such as AND, OR, and XOR) of Boolean expressions." -
2 Boolean operator
"An operator designed to work with Boolean values. The four most common Boolean operators in programming use are AND (logical conjunction), OR (logical inclusion), XOR (exclusive OR), and NOT (logical negation)." -
3 Boolean data type
"A data type with only two passable values, True (-1) or False (0). Boolean variables are stored as 16-bit (2-byte) numbers." -
4 AND
"A logical operation combining the values of two bits (0, 1) or two Boolean values (false, true) that returns a value of 1 (true) if both input values are 1 (true) and returns a 0 (false) otherwise."و -
5 OR
"A logical operation for combining two bits (0 or 1) or two Boolean values (false or true). If one or both values are 1 (true), it returns the value 1 (true)."OR -
6 XML Path Language
"A language used to address parts of an XML document. XPath also provides basic facilities for manipulation of strings, numbers, and Boolean values." -
7 XPath
"A language used to address parts of an XML document. XPath also provides basic facilities for manipulation of strings, numbers, and Boolean values." -
8 scalar data type
"A data type defined as having a predictable and enumerable sequence of values that can be compared for greater-than/less-than relationships. Scalar data types include integers, characters, user-defined enumerated data types, and (in most implementations) Boolean values."دالّة -
9 ChangeEvent
"In a statechart or activity diagram, an event in which a designated condition becomes true. A ChangeEvent is indicated by the keyword when followed by a Boolean expression in parentheses, for example: when (balance < 0)" -
10 advanced search
"A feature that enables users to build robust, targeted queries that include search operators. The least complex of which are the Boolean operators many users are familiar with. In addition, customers can use advanced operators such as ""contains:"" or ""inanchor:"" or ""site:"" Customers can add operator upon operator and watch their query change in the search box." -
11 double bang
"A double negation operator (!!), used to force a Boolean return value." -
12 Merge Shapes
"A tool that enables users to create custom shapes by combining multiple shapes into a single shape, using one of five geometric Boolean operations: Union, Combine, Fragment, Intersect, and Subtract." -
13 Valid for Advanced Find
A Boolean field that is used to indicate if an attribute can be used in Advanced Find.
См. также в других словарях:
Boolean — (after George Boole), as a noun or an adjective, may refer to: * Boolean algebra (logic), a logical calculus of truth values or set membership * Boolean algebra (structure), a set with operations resembling logical ones * Boolean datatype, a… … Wikipedia
Boolean — Boo‧le‧an [ˈbuːliən] adjective [only before a noun] COMPUTING relating to a type of logic in which something can be either true or false, but not both: • online systems which make use of Boolean logic • a Boolean search (= a search for… … Financial and business terms
Boolean — [bo͞o′lē ən] adj. 〚after G. Boole (1815 64), Eng mathematician〛 designating or of any of a number of mathematical systems, esp. one (Boolean algebra) devised using algebraic rules and symbols for the analysis of symbolic logic, which is now… … Universalium
Boolean — [bo͞o′lē ən] adj. [after G. Boole (1815 64), Eng mathematician] designating or of any of a number of mathematical systems, esp. one (Boolean algebra) devised using algebraic rules and symbols for the analysis of symbolic logic, which is now… … English World dictionary
Boolean — in reference to abstract algebraic systems, 1851, named for George Boole (1815 1864), English mathematician. The surname is a variant of Bull … Etymology dictionary
Boolean — ► ADJECTIVE ▪ denoting a system of notation used to represent logical propositions by means of the binary digits 0 (false) and 1 (true), especially in computing and electronics. ORIGIN named after the English mathematician George Boole (1815 64) … English terms dictionary
Boolean — /ˈbuliən/ (say boohleeuhn) adjective 1. of or relating to Boolean algebra: Boolean logic. 2. expressed or executed by means of Boolean algebra: a Boolean equation. {See Boolean algebra} …
Boolean — adjective Etymology: George Boole died 1864 English mathematician Date: 1851 of, relating to, or being a logical combinatorial system (as Boolean algebra) that represents symbolically relationships (as those implied by the logical operators AND,… … New Collegiate Dictionary
Boolean — Any variable that can have a logical value of true or false. Named after George Boole, the developer of a branch of algebra based on the values of true and false, Boolean works with logical rather than numeric relationships. Boolean… … Dictionary of networking
Boolean — Boolesche Variable, benannt nach George Boole, sind Elemente einer booleschen Algebra, die immer einen von zwei Werten annehmen. Dieses Wertepaar wird je nach Anwendung u. a. als „wahr/falsch“, „true/false“ oder „1/0“ bezeichnet. In elektrischen… … Deutsch Wikipedia
Boolean — Bool|e|an [ buliən ] adjective COMPUTING a Boolean search is one using the words and, or, and not to find a word or combination of words using an Internet SEARCH ENGINE. For example you could ask to search for car or automobile, or New York and… … Usage of the words and phrases in modern English