// Workers AI · dad joke modeWhat did undefined data say? Nothing.
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Look up undefined in Wiktionary, the free dictionary.
Undefined may refer to:
Mathematics
[edit]- Undefined (mathematics), with several related meanings
Computing
[edit]- Undefined behavior, computer code whose behavior is not specified under certain conditions
- Undefined value, a condition where an expression does not have a correct value
- Undefined variable, a variable that is accessed in code but has not been declared
Other uses
[edit]- Undefined, something that lacks any definition
- Undefined citizenship, a post-Soviet form of statelessness in Estonia
See also
[edit]- Null (disambiguation)
- Void (disambiguation)
- Invalid (disambiguation)
- Definition (disambiguation)
- Definable (disambiguation)
- All pages with titles beginning with Undefined
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