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undefined

mathematical concept which does not have meaning and so which is not assigned an interpretation
Class type of: mathematical expression Q7883028

Facts

5 properties
Instance of
mathematical concept
Subclass of
mathematical expression
Described by source
Mathwords[3]
Different from
indeterminate form[4]
Maintained by WikiProject
WikiProject Mathematics[5]
🏷️ Also known as
en undefined ar غير معرف de undefiniert he לא מוגדר ja 未定義 pt indefinido ro expresie nedefinită ro nedefinit ru неопределённость tr tanımsız
🔖 Identifiers · 1
MathWorld ID
Undefined

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Different from 1
indeterminate form
Maintained by WikiProject 1
WikiProject Mathematics
Subclass of 1
mathematical expression
Subtypes 1
division by zero
← Different from 1
indeterminate form
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Summary

undefined is a mathematical concept[1]. undefined is a type of mathematical expression[2].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). undefined. Retrieved November 4, 2026, from https://4ort.xyz/entity/undefined
MLA “undefined.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Nov. 2026, https://4ort.xyz/entity/undefined.
BibTeX @misc{4ortxyz_undefined_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{undefined}}, year = {2026}, url = {https://4ort.xyz/entity/undefined}, note = {Accessed: 2026-11-04}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): undefined — https://4ort.xyz/entity/undefined (retrieved 2026-11-04)

Canonical URL: https://4ort.xyz/entity/undefined · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 4d ago · Olexa Riznyk · 2026-10-31 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'bn', 'en', 'he', 'ro', 'tr', 'zh']
    Claims rich → —
    "/* wbsetlabel-add:1|uk */ невизначеність (математика)"
  2. 6w ago · AddyLockPool · 2026-09-20 view diff on Wikidata ↗
    Instance of → mathematical concept
    Subclass of → mathematical expression
    Described by source → Mathwords
    Instance of → —
    + 4 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ Described by source: Mathwords"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.