# Abu al-Wafa' Buzjani

> A Persian mathematician working in tenth-century Baghdad who built the scaffolding modern trigonometry still stands on: the secant and cosecant functions, sine and tangent tables carved at fifteen-minute intervals, the arithmetic that first let medieval Islamic scholars write debts as negative numbers.

*Persian mathematician and astronomer (940–998)*

**Canonical URL:** https://fame.am/person/abu-al-wafa-buzjani

## Identity
- **Profile type:** Academic ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Academics
- **Born:** 0940-06-10
- **Died:** 0998-07-15
- **Status:** deceased
- **Gender:** male

## Bio

Born in June 940, Abu al-Wafa' Buzjani spent his career in Baghdad pushing past the limits of the geometry he inherited. He rewrote spherical trigonometry with new precision, mapping the six trigonometric lines of an arc and how they spoke to each other. His arithmetic textbook for merchants broke ground by using negative numbers—the first time they appeared in a medieval Islamic text. He compiled tables of sines and tangents at fifteen-minute intervals, tools that would guide astronomers for centuries. His Almagest became required reading across the medieval Arabic world long after his death in July 998, though several other books he wrote have vanished.

## Fame
- **Popularity score:** 56.3 / 100
- **Momentum:** 8.3 / 100  (trend: RISING)
- **Historical depth:** 23.7 / 100
- **Now attention:** 46.1 / 100
- **Source confidence:** 60.0 / 100
- **Profile completeness:** 60.0 / 100

## Topics
#Scientists, #Academic, #Mathematics, #Astronomy, #Medieval Era

## Sources
- [Wikidata](https://www.wikidata.org/wiki/Q298439)
- [Wikipedia](https://en.wikipedia.org/wiki/Abu_al-Wafa'_Buzjani)
- [Pantheon 2.0](https://pantheon.world/profile/person/Abu%20al-Wafa'%20Buzjani)
- [Абул Уафа](https://bg.wikipedia.org/wiki/%D0%90%D0%B1%D1%83%D0%BB_%D0%A3%D0%B0%D1%84%D0%B0)
- [আবুল ওয়াফা বুযজানি](https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%AC%E0%A7%81%E0%A6%B2_%E0%A6%93%E0%A6%AF%E0%A6%BC%E0%A6%BE%E0%A6%AB%E0%A6%BE_%E0%A6%AC%E0%A7%81%E0%A6%AF%E0%A6%9C%E0%A6%BE%E0%A6%A8%E0%A6%BF)
- [Abu-l-Wafà Muhàmmad al-Buzajaní](https://ca.wikipedia.org/wiki/Abu-l-Waf%C3%A0_Muh%C3%A0mmad_al-Buzajan%C3%AD)
- [ئەبوو وەفا بووزجانی](https://ckb.wikipedia.org/wiki/%D8%A6%DB%95%D8%A8%D9%88%D9%88_%D9%88%DB%95%D9%81%D8%A7_%D8%A8%D9%88%D9%88%D8%B2%D8%AC%D8%A7%D9%86%DB%8C)
- [Abu'l-Wafa](https://cs.wikipedia.org/wiki/Abu'l-Wafa)
- [Abu al-Wafa](https://da.wikipedia.org/wiki/Abu_al-Wafa)
- [Abu l-Wafa](https://de.wikipedia.org/wiki/Abu_l-Wafa)
- [Αμπού αλ Ουάφα](https://el.wikipedia.org/wiki/%CE%91%CE%BC%CF%80%CE%BF%CF%8D_%CE%B1%CE%BB_%CE%9F%CF%85%CE%AC%CF%86%CE%B1)
- [Abu al-Wafa' al-Buzjani](https://en.wikipedia.org/wiki/Abu_al-Wafa'_al-Buzjani)
- [Abu'l-Wafa](https://es.wikipedia.org/wiki/Abu'l-Wafa)
- [ابوالوفا محمد بوزجانی](https://fa.wikipedia.org/wiki/%D8%A7%D8%A8%D9%88%D8%A7%D9%84%D9%88%D9%81%D8%A7_%D9%85%D8%AD%D9%85%D8%AF_%D8%A8%D9%88%D8%B2%D8%AC%D8%A7%D9%86%DB%8C)
- [Abu al-Wafa](https://fi.wikipedia.org/wiki/Abu_al-Wafa)
- [Abu l-Wafa](https://fr.wikipedia.org/wiki/Abu_l-Wafa)
- [אבו אל-ופא בוזג'אני](https://he.wikipedia.org/wiki/%D7%90%D7%91%D7%95_%D7%90%D7%9C-%D7%95%D7%A4%D7%90_%D7%91%D7%95%D7%96%D7%92'%D7%90%D7%A0%D7%99)
- [अबू अल-वफ़ा अल-बुज़ानी](https://hi.wikipedia.org/wiki/%E0%A4%85%E0%A4%AC%E0%A5%82_%E0%A4%85%E0%A4%B2-%E0%A4%B5%E0%A4%AB%E0%A4%BC%E0%A4%BE_%E0%A4%85%E0%A4%B2-%E0%A4%AC%E0%A5%81%E0%A4%9C%E0%A4%BC%E0%A4%BE%E0%A4%A8%E0%A5%80)
- [Abu l-Vafá Muhammad ibn Muhammad al-Búzdzsáni](https://hu.wikipedia.org/wiki/Abu_l-Vaf%C3%A1_Muhammad_ibn_Muhammad_al-B%C3%BAzdzs%C3%A1ni)
- [Abul Wafa Muhammad Al Buzjani](https://id.wikipedia.org/wiki/Abul_Wafa_Muhammad_Al_Buzjani)
- [Abu l-Wafa Muhammad al-Buzjani](https://it.wikipedia.org/wiki/Abu_l-Wafa_Muhammad_al-Buzjani)
- [アブル・ワファー](https://ja.wikipedia.org/wiki/%E3%82%A2%E3%83%96%E3%83%AB%E3%83%BB%E3%83%AF%E3%83%95%E3%82%A1%E3%83%BC)
- [Abul Wafa Muhammad Al-Buzjani](https://jv.wikipedia.org/wiki/Abul_Wafa_Muhammad_Al-Buzjani)
- [აბუ ლ-ვაფა ალ-ბუზჯანი](https://ka.wikipedia.org/wiki/%E1%83%90%E1%83%91%E1%83%A3_%E1%83%9A-%E1%83%95%E1%83%90%E1%83%A4%E1%83%90_%E1%83%90%E1%83%9A-%E1%83%91%E1%83%A3%E1%83%96%E1%83%AF%E1%83%90%E1%83%9C%E1%83%98)
- [Абуль-Уафа аль-Бузджани](https://kk.wikipedia.org/wiki/%D0%90%D0%B1%D1%83%D0%BB%D1%8C-%D0%A3%D0%B0%D1%84%D0%B0_%D0%B0%D0%BB%D1%8C-%D0%91%D1%83%D0%B7%D0%B4%D0%B6%D0%B0%D0%BD%D0%B8)
- [Ebûlwefa Bûzcanî](https://ku.wikipedia.org/wiki/Eb%C3%BBlwefa_B%C3%BBzcan%C3%AE)
- [Wikiquote](https://ar.wikiquote.org/wiki/%D8%A3%D8%A8%D9%88_%D8%A7%D9%84%D9%88%D9%81%D8%A7%D8%A1_%D8%A7%D9%84%D8%A8%D9%88%D8%B2%D8%AC%D8%A7%D9%86%D9%8A)
- [Wikiquote](https://fa.wikiquote.org/wiki/%D8%A7%D8%A8%D9%88%D8%A7%D9%84%D9%88%D9%81%D8%A7_%D9%85%D8%AD%D9%85%D8%AF_%D8%A8%D9%88%D8%B2%D8%AC%D8%A7%D9%86%DB%8C)
- [أبو الوفاء البوزجاني](https://ar.wikipedia.org/wiki/%D8%A3%D8%A8%D9%88_%D8%A7%D9%84%D9%88%D9%81%D8%A7%D8%A1_%D8%A7%D9%84%D8%A8%D9%88%D8%B2%D8%AC%D8%A7%D9%86%D9%8A)
- [Əbül-Vəfa əl-Buzcani](https://az.wikipedia.org/wiki/%C6%8Fb%C3%BCl-V%C9%99fa_%C9%99l-Buzcani)

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