فهرست مطالب
نشریه میراث علمی اسلام و ایران
سال نهم شماره 1 (پیاپی 17، بهار و تابستان 1399)
- تاریخ انتشار: 1400/09/13
- تعداد عناوین: 13
- سرسخن
- مقاله
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صفحه 31
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صفحه 59
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صفحه 74
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صفحه 99
- یادداشت های تاریخی
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صفحه 126
- یاد نامه ها
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صفحه 128
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صفحه 138
- رساله
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صفحه 140
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Page 59
Omar Khayyām (1048-1131) and Girolamo Cardano (1501-1576) are both well known for “solving” cubic equations. The common understanding is that Khayyām solved the cubic equations geometrically while Cardano did it algebraically. In this short article, we see the fates of their approaches by reviewing their similarities and differences alongside each other.
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Page 74
The pattern called chār toranj is frequently seen in the geometrical tilings of old buildings, especially in Isfahan (Iran). It consists of four kite shaped quadrilaterals plus a small square which altogether constitute a bigger square. The oldest known sample, preserved in Hermitage museum of Petersburg, dated around the 6th century B. C., is found in the common border point of Russia, Mongolia and China. In this paper several samples of this pattern from Iran, Tajikistan, Uzbekistan and Iraq are presented. Moreover, the geometrical properties and implications of this pattern are discussed.
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Page 84
Majmūʻ al-Murabbaʻāt or The sum of square numbers is an unknown treatise of Muḥammad Bāqir Yazdī (alive in 1638 A.D.). It was believed to be a part of his ʻUyūn al-Ḥisāb, but it became clear to the researchers that it is an independent one. This treatise contains introduction and analysis of some propositions about the sum of odd and even square numbers and examines the sum of how many of these square numbers results in a square number. Evidently this mathematical problem was an issue of interest for Islamic scientists such as Naṣīr al-Dīn al-Ṭūsī, Abū Jaʻfar al-Khāzin and Kamāl al-Dīn ibn Yūnus.
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Page 126
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Page 128
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Page 138