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Abu Nasri Mansur ibn Ali ibn Iraq (Persian: أبو نصر منصور بن علی بن عراق; c. 960 – 1036) was a Persian[1] Muslim mathematician and astronomer. He is well known for his work with the spherical sine law.[2][3]

Abu Nasr Mansur
Born970
Gīlān
Died1036
Ghazni
Known forTrigonometry Law of sines
Scientific career
FieldsAstronomer Mathematician
InfluencesMenelaus of Alexandria, Abu al-Wafa'
InfluencedAl-Biruni

Abu Nasr Mansur was born in Gilan, Persia, to the ruling family of Khwarezm, the Afrighids.[4] He was thus a prince within the political sphere. He was a student of Abu'l-Wafa and a teacher of and also an important colleague of the mathematician, Al-Biruni. Together, they were responsible for great discoveries in mathematics and dedicated many works to one another.

Most of Abu Nasri's work focused on math, but some of his writings were on astronomy. In mathematics, he had many important writings on trigonometry, which were developed from the writings of Ptolemy. He also preserved the writings of Menelaus of Alexandria and reworked many of the Greeks theorems.

He died in the Ghaznavid Empire (modern-day Afghanistan) near the city of Ghazna.


References


  1. Sajjadi, Sadeq; Rahimi, Simin. "Abū Naṣr Manṣūr b. ʿIrāq". In Madelung, Wilferd; Daftary, Farhad (eds.). Encyclopaedia Islamica.
  2. Also the 'sine law' (of geometry and trigonometry, applicable to spherical trigonometry) is attributed, among others, to Alkhujandi. (The three others are Abul Wafa Bozjani, Nasiruddin Tusi and Abu Nasr Mansur). Razvi, Syed Abbas Hasan (1991) A history of science, technology, and culture in Central Asia, Volume 1 University of Peshawar, Peshawar, Pakistan, page 358, OCLC 26317600
  3. Bijli suggests that three mathematicians are in contention for the honor, Alkhujandi, Abdul-Wafa and Mansur, leaving out Nasiruddin Tusi. Bijli, Shah Muhammad and Delli, Idarah-i Adabiyāt-i (2004) Early Muslims and their contribution to science: ninth to fourteenth century Idarah-i Adabiyat-i Delli, Delhi, India, page 44, OCLC 66527483
  4. Bosworth, C. E. "ĀL-E AFRĪḠ". Encyclopædia Iranica. Columbia University. Archived from the original on 16 November 2015. Retrieved 17 January 2013.

Sources



На других языках


[de] Abu Nasr Mansur

Abū Nasr Mansūr ibn ʿAlī Ibn ʿIrāq (persisch أبو نصر منصور بن علی بن عراق, DMG Abū Naṣr Manṣūr ibn ʿAlī Ibn ʿIrāq); * ca. 960 in Gilan; † um 1036 in Ghazna (Afghanistan),[1][2] war ein persischer Mathematiker und Astronom, der als erster Wissenschaftler den sphärischen Sinussatz bewiesen hat
- [en] Abu Nasr Mansur

[it] Abu Nasr Mansur

Abū Naṣr Manṣūr ibn ʿAlī b. ʿIrāq (in arabo: ابو نصر منصور بن علی بن عراق‎; Gīlān, 970 – Ghazni, 1036) è stato un astronomo e matematico persiano musulmano.

[ru] Ибн Ирак

Абу Наср Мансур ибн Али ибн Ирак ал-Джади (араб. منصور بن عراق‎, Хорезм, 960 — Газна, ок. 1036) — среднеазиатский астроном и математик. Был учеником Абу-л-Вафы. Принадлежал к семье хорезмшахов Афригидов и после её падения в 995 перенёс много лишений. До 995 жил в Кяте — древней столице хорезмшахов. Работал в Ургенче, а после 1017 — в Газне при дворе султана Махмуда Газневи. Был учителем и другом ал-Бируни; из сочинений последнего можно почерпнуть важные сведения о его жизни и творчестве.



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