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Dottie number

mathematical constant related to the cosine function
Thing Mathematical Constant Q48996451

Facts

8 properties
Instance of
mathematical constant, real number[2]
Defining formula
\cos r = r[5]
In defining formula
r[8]
Invariant under
cosine[9]
Maintained by WikiProject
WikiProject Mathematics[7]
Named after
Dottie[3]
Named by
Samuel Kaplan[6]
Numeric value
0.7390851332151607[4]
🏷️ Also known as
en Dottie number de Dottie-Zahl es número de Dottie fr nombre de Dottie hu Dottie-szám it Numero di Dottie ja ドッティ数 pl Liczba Dottie ru Число Дотти zh 多迪数
🔖 Identifiers · 4
Image (Wikimedia Commons)
Cosine fixed point.svg ↗
Google Knowledge Graph ID
/g/11b72syd45
MathWorld ID
DottieNumber
OEIS ID
A003957

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

🔗 Connections
Instance of 2
real number, mathematical constant
Invariant under 1
cosine
Maintained by WikiProject 1
WikiProject Mathematics
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Summary

Dottie number is a mathematical constant[1].

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.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . 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). Dottie number. Retrieved November 8, 2026, from https://4ort.xyz/entity/dottie-number
MLA “Dottie number.” 4ort.xyz Knowledge Graph, 4ort.xyz, 8 Nov. 2026, https://4ort.xyz/entity/dottie-number.
BibTeX @misc{4ortxyz_dottie-number_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Dottie number}}, year = {2026}, url = {https://4ort.xyz/entity/dottie-number}, note = {Accessed: 2026-11-08}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Dottie number — https://4ort.xyz/entity/dottie-number (retrieved 2026-11-08)

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