Two proofs from Āzarkhor Ashtāz Goshnasp

One of the Iranian scientists of the fourth and fifth centuries AH is Āzarkhor Asht\={a}z Goshnasp. His name is only mentioned in the works of the prominent Iranian scientist, Ab\={u} Rayh\={a}n al-B\={i}r\={u}n\={i}. In this paper, we will explain \={A}zarkhor's two proofs on the first theorem...

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Main Author: Reza Kahkeshani
Format: Article
Language:fas
Published: University of Isfahan 2025-02-01
Series:ریاضی و جامعه
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Online Access:https://math-sci.ui.ac.ir/article_28629_2b9bb0f7e92c9448c5734b947e0ade00.pdf
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author Reza Kahkeshani
author_facet Reza Kahkeshani
author_sort Reza Kahkeshani
collection DOAJ
description One of the Iranian scientists of the fourth and fifth centuries AH is Āzarkhor Asht\={a}z Goshnasp. His name is only mentioned in the works of the prominent Iranian scientist, Ab\={u} Rayh\={a}n al-B\={i}r\={u}n\={i}. In this paper, we will explain \={A}zarkhor's two proofs on the first theorem of the book ``al-Estekhr\={a}j al-Awt\={a}r" that given by Ab\={u} Rayh\={a}n. This theorem is called ``Theorem of the broken chord" and these two proofs are the only mathematical legacy left by \={A}zarkhor.
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institution Kabale University
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publishDate 2025-02-01
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series ریاضی و جامعه
spelling doaj-art-bf7cf806dc1b42eab81136c379ac5ad92025-08-20T03:48:13ZfasUniversity of Isfahanریاضی و جامعه2345-64932345-65072025-02-01101677710.22108/msci.2024.139764.162228629Two proofs from Āzarkhor Ashtāz GoshnaspReza Kahkeshani0Department of Pure Mathematics, Faculty of Mathematical Sciences, University of Kashan, Kashan, IranOne of the Iranian scientists of the fourth and fifth centuries AH is Āzarkhor Asht\={a}z Goshnasp. His name is only mentioned in the works of the prominent Iranian scientist, Ab\={u} Rayh\={a}n al-B\={i}r\={u}n\={i}. In this paper, we will explain \={A}zarkhor's two proofs on the first theorem of the book ``al-Estekhr\={a}j al-Awt\={a}r" that given by Ab\={u} Rayh\={a}n. This theorem is called ``Theorem of the broken chord" and these two proofs are the only mathematical legacy left by \={A}zarkhor.https://math-sci.ui.ac.ir/article_28629_2b9bb0f7e92c9448c5734b947e0ade00.pdfāzarkhor ashtāz goshnaspabū rayhān al-bīrūnīal-estekhrāj al-awtārislamic agegeometry
spellingShingle Reza Kahkeshani
Two proofs from Āzarkhor Ashtāz Goshnasp
ریاضی و جامعه
āzarkhor ashtāz goshnasp
abū rayhān al-bīrūnī
al-estekhrāj al-awtār
islamic age
geometry
title Two proofs from Āzarkhor Ashtāz Goshnasp
title_full Two proofs from Āzarkhor Ashtāz Goshnasp
title_fullStr Two proofs from Āzarkhor Ashtāz Goshnasp
title_full_unstemmed Two proofs from Āzarkhor Ashtāz Goshnasp
title_short Two proofs from Āzarkhor Ashtāz Goshnasp
title_sort two proofs from azarkhor ashtaz goshnasp
topic āzarkhor ashtāz goshnasp
abū rayhān al-bīrūnī
al-estekhrāj al-awtār
islamic age
geometry
url https://math-sci.ui.ac.ir/article_28629_2b9bb0f7e92c9448c5734b947e0ade00.pdf
work_keys_str_mv AT rezakahkeshani twoproofsfromazarkhorashtazgoshnasp