Risālaẗ fī istiḫrāj ḫaṭṭayn bayna ḫaṭṭayn ḥattỳ tatawālā al-arbaʿaẗ ʿalỳ nisbaẗ wa-qismaẗ al-zāwiyaẗ bi-ṯalāṯaẗ aqsām mutasāwiyyaẗ

TEXT

Risālah fī istikhrāj khaṭṭayn bayna khaṭṭayn ḥattá tatawālā al-arbaʿah ʿalá nisbah wa-qismat al-zāwiyah bi-thalāthah aqsām mutasāwiyyah

Title (arabic)	رسالة في إستخراج خطّين بين خطّين حتی تتوالا الأربعة علی نسبة وقسمة الزاوية بثلاثة أقسام متساوية
Title (translit)	Risālah fī istikhrāj khaṭṭayn bayna khaṭṭayn ḥattá tatawālā al-arbaʿah ʿalá nisbah wa-qismat al-zāwiyah bi-thalāthah aqsām mutasāwiyyah
Alias	Risālaẗ fī istiḫrāj ḫaṭṭayn bayna ḫaṭṭayn ḥattỳ tatawālā al-arbaʿaẗ ʿalỳ nisbaẗ wa-qismaẗ al-zāwiyaẗ bi-ṯalāṯaẗ aqsām mutasāwiyyaẗ
Author	Abū Sahl Wījan ibn Rustam al-Kūhī [al-Qūhī]
Language	Arabic
Subject	Geometry: General
ismi_id	104933

Manuscript Witnesses

3 witnesses:

Risālah fī istikhrāj khaṭṭayn bayna khaṭṭayn ḥattá tatawālā al-arbaʿah ʿalá nisbah wa-qismat al-zāwiyah bi-thalāthah aqsām mutasāwiyyah_Cairo_Dār al-kutub_Muṣṭafā Fāḍil riyāḍa_40

Risālah fī istikhrāj khaṭṭayn bayna khaṭṭayn ḥattá tatawālā al-arbaʿah ʿalá nisbah wa-qismat al-zāwiyah bi-thalāthah aqsām mutasāwiyyah_Damascus_Asad_unknown [Asad]_5648

Risālah fī istikhrāj khaṭṭayn bayna khaṭṭayn ḥattá tatawālā al-arbaʿah ʿalá nisbah wa-qismat al-zāwiyah bi-thalāthah aqsām mutasāwiyyah_Istanbul_Süleymaniye Manuscript Library_Ayasofya_4832

Literature References

Rozenfeld, Boris, and Ekmeleddin İhsanoğlu. 2003. Mathematicians, Astronomers and Other Scholars of Islamic Civilisation and Their Works (7th-19th c.). Istanbul: Research Centre for Islamic History, Art, and Culture.

P. 104 (no. 277), M14.