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Grandi's series

the infinite sum of alternating 1 and -1 terms
Thing divergent_series Q967588
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Grandi's series

Summary

Grandi's series is a divergent series[1]. It draws 117 Wikipedia views per month (divergent_series category, ranking #1 of 4).[2]

Key Facts

  • Grandi's series's instance of is recorded as divergent series[3].
  • Luigi Guido Grandi is named after Grandi's series[4].
  • Grandi's series's Freebase ID is recorded as /m/026fksd[5].
  • Grandi's series's defining formula is recorded as \sum_{n=0}^{\infty} (-1)^n[6].
  • Grandi's series's maintained by WikiProject is recorded as WikiProject Mathematics[7].
  • Grandi's series's Microsoft Academic ID is recorded as 62563487[8].
  • Grandi's series's Namuwiki ID is recorded as 그란디 급수[9].

Why It Matters

Grandi's series draws 117 Wikipedia views per month (divergent_series category, ranking #1 of 4).[2] It has Wikipedia articles in 24 language editions, a strong signal of global cultural recognition.[10]

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] ↑ . Freebase Data Dumps. wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [10] ↑ . Wikidata sitelinks. 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). Grandi's series. Retrieved May 3, 2026, from https://4ort.xyz/entity/grandi-s-series
MLA “Grandi's series.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/grandi-s-series.
BibTeX @misc{4ortxyz_grandi-s-series_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Grandi's series}}, year = {2026}, url = {https://4ort.xyz/entity/grandi-s-series}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Grandi's series — https://4ort.xyz/entity/grandi-s-series (retrieved 2026-05-03)

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