Author
- Porphyry1
- Ptolemy1
- Qutb al-Din al-Shirazi1
- Qāz̤ī Muḥammad Aʻlá1
- Raghunandana Bhattacaryaya1
- Rajab ʻAlī Beg Surūr1
- Rukn ibn Sharaf al-Dīn Āmulī1
- Rāma Daivajña1
- Shaʻbān al-āthārī1
- Sirāj al-Dīn Abū Ḥafṣ ʻUmar Ibn al-Wardī1
- Sylvester II1
- Trimallabhaṭṭa1
- Ulugh Beg1
- Viṭṭhaladīkṣita1
- Werner Rolevinck1
- William Bourne1
- William of Conches1
- Yaḥyá ibn Aḥmad Kāshānī1
- Ādi Shankara1
- Ǧābir Ibn-Aflāḥ1