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  2. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS.It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA).

  3. Substitution (logic) - Wikipedia

    en.wikipedia.org/wiki/Substitution_(logic)

    Where ψ and φ represent formulas of propositional logic, ψ is a substitution instance of φ if and only if ψ may be obtained from φ by substituting formulas for propositional variables in φ, replacing each occurrence of the same variable by an occurrence of the same formula.

  4. Substitute character - Wikipedia

    en.wikipedia.org/wiki/Substitute_character

    In computer data, a substitute character (␚) is a control character that is used to pad transmitted data in order to send it in blocks of fixed size, ...

  5. Substitution cipher - Wikipedia

    en.wikipedia.org/wiki/Substitution_cipher

    To substitute pairs of letters would take a substitution alphabet 676 symbols long (). In the same De Furtivis Literarum Notis mentioned above, della Porta actually proposed such a system, with a 20 x 20 tableau (for the 20 letters of the Italian/Latin alphabet he was using) filled with 400 unique glyphs. However the system was impractical and ...

  6. Wildcard character - Wikipedia

    en.wikipedia.org/wiki/Wildcard_character

    In SQL, wildcard characters can be used in LIKE expressions; the percent sign % matches zero or more characters, and underscore _ a single character. Transact-SQL also supports square brackets ([and ]) to list sets and ranges of characters to match, a leading caret ^ negates the set and matches only a character not within the list.

  7. Liskov substitution principle - Wikipedia

    en.wikipedia.org/wiki/Liskov_substitution_principle

    Liskov's notion of a behavioural subtype defines a notion of substitutability for objects; that is, if S is a subtype of T, then objects of type T in a program may be replaced with objects of type S without altering any of the desirable properties of that program (e.g. correctness).

  8. Help:Substitution - Wikipedia

    en.wikipedia.org/wiki/Help:Substitution

    To substitute the current content of a page in mainspace (i.e. one with no namespace prefix), two colons are required, as in {{subst::Page}}. If a substituted page or template does not exist, the entire expression (with braces and subst:) will remain unchanged in the wikitext and on the page.

  9. Ternary conditional operator - Wikipedia

    en.wikipedia.org/wiki/Ternary_conditional_operator

    The detailed semantics of "the" ternary operator as well as its syntax differs significantly from language to language. A top level distinction from one language to another is whether the expressions permit side effects (as in most procedural languages) and whether the language provides short-circuit evaluation semantics, whereby only the selected expression is evaluated (most standard ...

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