Quadrant (رُبْع), comprising an astrolabe quadrant (ربع المُقَنْطَرَات, Side A), and a sine quadrant (ربع المُجَيَّب, Side B). The quadrant is signed by its maker, Aḥmad ibn Ibrāhīm al-Sharbatlī (أحمد ابن إبراهيم الشربتلي, Side A), and dated 1256/1840-1 (Side B).
Taḥrīr kitāb al-majisṭī تحرير كتاب المجسطي Ptolemy بطلميوس Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad طوسي، نصير الدين محمد بن محمد
Scope & Content:
The Almagest (كتاب المجسطي), an Arabic version of the Μαθηματικῆς σύνταξις of Ptolemy (Claudius Ptolemaeus; c 90-c 168), in the annotated edition (تحرير) of Naṣīr al-Dīn Muḥammad ibn Muḥammad al-Ṭūsī (نصير الدين محمد بن محمد الطوسي; d. 1274). This was the most influential and enduring astronomic...