ब्राह्मस्फुटसिद्धान्त (ब्रह्मगुप्त - शून्य, कुट्टक, बीजगणित एवं सम्पूर्ण २१ अध्याय सान्वय सटीक)

56 PERSONAL REFERENCES OF BRAHMAGUPTA anti-authoritative versions of astronomical systems : Evam Varāhamihira-Śrīṣeṇācāryabhaṭa-Viṣṇucandrādyaiḥ Lokaviruddhamabhihitam Veda-smṛtisaṃhitābāhyam. At one place, he mentions the difference between the calculations based on the system of Āryabhaṭa and the Pañca-siddhāntas (Five systems) : Pauliśa, Romaka, Vasiṣṭha, Saura, and Paitāmaha. (BrSpSi. XIV.46). Brahmagupta was also familiar with the Jaina systems of astronomy; for example, at one place he uses the term "Jinoktam" (i.e., one propounded by the Jainas) : He repudiates the concept of two Suns and two Moons "Dvāvarkaindavau" (do canda do sujja) (BrSpSi. XI.3) as enunciated by the Jainas. At several places we find a reference to the Vasiṣṭha-sid- dhānta (BrSpSi. XI.49, 50; XXIV.3) Wherever, Brahmagupta has to press for his views in pre- ference to the views of others, he uses the words Brāhma or Brahmokta : BrSpSi. Brāhma : I.32; X.62; XI, 61; XVI.37 Brahmokta : II.31, 33; X.63, 69; XV.59; XVI.33 Reference Sudhākara Dvivedi : Gaṇaka Taraṅgiṇī G. Bühler : Gurjara Inscriptions, Indian Anti- quary, 1888. P. C. Sengupta : Khaṇḍakhādyaka, Calcutta, 1934. — . o : —