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If-then-else flow diagram A nested if–then–else flow diagram. In computer science, conditionals (that is, conditional statements, conditional expressions and conditional constructs) are programming language constructs that perform different computations or actions or return different values depending on the value of a Boolean expression, called a condition.
The #ifexist function selects one of two alternatives depending on whether a page exists at the specified title. {{#ifexist: page title | value if page exists | value if page doesn't exist}} The page can be in any namespace, so it can be an article or "content page", an image or other media file, a category, etc.
The batch file below gives the user three choices. [13] The user is directed depending upon his input by evaluating the exit code using the IF ERRORLEVEL command (which tests on "greater or equal"). The selected choice is then printed to the screen using the ECHO command.
In MS-DOS, a batch file can be started from the command-line interface by typing its name, followed by any required parameters and pressing the ↵ Enter key. When DOS loads, the file AUTOEXEC.BAT, when present, is automatically executed, so any commands that need to be run to set up the DOS environment may be placed in this file.
Some first-order theories are algorithmically decidable; examples of this include Presburger arithmetic, real closed fields, and static type systems of many programming languages. On the other hand, the first-order theory of the natural numbers with addition and multiplication expressed by Peano's axioms cannot be decided with an algorithm.
For example, the system may want to explore the consequences of both assertions, what will be true if Socrates is a Man and what will be true if he is not? Uncertainty systems. One of the first extensions of simply using rules to represent knowledge was also to associate a probability with each rule.
A corresponding Take Command/32 exists for this, version 1 corresponding to 4NT 2.5. 4NT and Take Command/32 were released in both ANSI (Windows 9x) and Unicode (Windows NT) forms, with the ANSI version dropped at version 5. A new Win32 program Tabbed Command Interface (TCI), was released at the time of 4NT version 7. This program allowed one ...
Mediawiki2pdf (shows sample Wikibooks url, but reportedly works for Wikipedia articles as well) m:Alternative parsers – programs and projects to translate MediaWiki's text markup syntax into something else, such as HTML; Wikipedia:Wiki Markup Language (WKML) (historical) Extensions: see MediaWiki; External links: see Sources, URLs