sign function

mathematical function that extracts the sign of a real number or complex number
CreativeWork wikimedia_article_covering_multiple_topics Q236813
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sign function

Summary

sign function is a Wikimedia article covering multiple topics[1]. It draws 786 Wikipedia views per month (wikimedia_article_covering_multiple_topics category, ranking #45 of 186).[2]

Key Facts

  • sign function's instance of is recorded as Wikimedia article covering multiple topics[3].
  • sign function is a type of function[4].
  • sign function is a type of odd function[5].
  • sign function is a type of unary function[6].
  • sign function is a type of idempotent function[7].
  • sign function's Commons category is recorded as Signum function[8].
  • sign function's main subject is real sign function[9].
  • sign function's main subject is complex sign function[10].
  • sign function's different from is recorded as complex sign function[11].
  • sign function's maintained by WikiProject is recorded as WikiProject Mathematics[12].

Body

Subject and Themes

Main subjects include real sign function[9] and complex it[10].

Why It Matters

sign function draws 786 Wikipedia views per month (wikimedia_article_covering_multiple_topics category, ranking #45 of 186).[2] It has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[13] It is known by 46 alternative names across languages and contexts.[14]

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [13] . Wikidata sitelinks. wikidata.org.
  3. [14] . Wikidata aliases. 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). sign function. Retrieved May 3, 2026, from https://4ort.xyz/entity/sign-function
MLA “sign function.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/sign-function.
BibTeX @misc{4ortxyz_sign-function_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{sign function}}, year = {2026}, url = {https://4ort.xyz/entity/sign-function}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): sign function — https://4ort.xyz/entity/sign-function (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/sign-function · 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. 6w ago · נדב ס · 2026-05-22 view diff on Wikidata ↗
    Subclass of
    Maintained by wikiproject WikiProject Mathematics
    Main subject real sign function, complex sign function
    Different from complex sign function
    + 4 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P1889]]: [[Q1064405]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.