# Abu Bakr al-Hassar

> Al-Hassar or Abu Bakr Muhammad ibn Abdallah ibn Ayyash al-Hassar was a 12th-century Moroccan mathematician. He is the author of two books Kitab al-bayan wat-tadhkar, a manual of calculation and Kitab al-kamil fi sinaat al-adad, on the breakdown of numbers. The first book is lost and only a part of the second book remains.

*Moroccan mathematician*

**Canonical URL:** https://fame.am/person/abu-bakr-al-hassar

## Identity
- **Profile type:** Academic ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Academics
- **Status:** unknown
- **Gender:** male

## Bio

Imported from discovery source: wikidata-dump

## Fame
- **Popularity score:** 42.6 / 100
- **Momentum:** 10.2 / 100  (trend: RISING)
- **Historical depth:** 5.7 / 100
- **Now attention:** 0.0 / 100
- **Source confidence:** 35.0 / 100
- **Profile completeness:** 45.0 / 100

## Sources
- [محمد بن حصار](https://fa.wikipedia.org/wiki/%D9%85%D8%AD%D9%85%D8%AF_%D8%A8%D9%86_%D8%AD%D8%B5%D8%A7%D8%B1)
- [أبو بكر الحصار](https://ar.wikipedia.org/wiki/%D8%A3%D8%A8%D9%88_%D8%A8%D9%83%D8%B1_%D8%A7%D9%84%D8%AD%D8%B5%D8%A7%D8%B1)
- [Abu Bakr al-Hassar](https://en.wikipedia.org/wiki/Abu_Bakr_al-Hassar)
- [Аль-Хасар](https://ru.wikipedia.org/wiki/%D0%90%D0%BB%D1%8C-%D0%A5%D0%B0%D1%81%D0%B0%D1%80)
- [Abu Bakr al-Hassar](https://fr.wikipedia.org/wiki/Abu_Bakr_al-Hassar)
- [Al-Hassar](https://ms.wikipedia.org/wiki/Al-Hassar)
- [Wikidata](https://www.wikidata.org/wiki/Q4116723)

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