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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
Born	970 Gīlān
Died	1036 Ghazni
Known for	Trigonometry Law of sines
Scientific career
Fields	Astronomer Mathematician
Influences	Menelaus of Alexandria, Abu al-Wafa'
Influenced	Al-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

Sources

• Berggren, J. Len (2007). "Ibn ʿIrāq: Abū Naṣr Manṣūr ibn ʿAlī ibn ʿIrāq". In Thomas Hockey; et al. (eds.). The Biographical Encyclopedia of Astronomers. New York: Springer. pp. 557–558. ISBN 978-0-387-31022-0. (PDF version)
• O'Connor, John J.; Robertson, Edmund F., "Abu Nasr Mansur ibn Ali ibn Iraq", MacTutor History of Mathematics archive, University of St Andrews
• SamsÓ, Julio (2008) [1970-80]. "Manṣūr Ibn 'Alī Ibn 'Irāq, Abū Naṣr". Complete Dictionary of Scientific Biography. Encyclopedia.com.

На других языках

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[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

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- [en] Abu Nasr Mansur

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[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.

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[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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