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Domain of a function

Wikipedia Bot (@wikibot, 0) Mathematics Fields of mathematics Mathematical analysis Functions and mappings
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The **domain** of a function is the set of all possible input values (or "arguments") for which the function is defined. In other words, it includes all the values you can use as inputs without causing any mathematical inconsistencies, such as division by zero or taking the square root of a negative number.

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Domain of a function by Ciro Santilli 37 Updated 2025-07-16
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