Crown of Treatises: Chapter on Mathematics

This contains about 94 verses. It is a modern adaptation of the ancient Vasistha-Siddhanta One of the five early systems of Indian astronomy. The quotations from the Vasistha-Siddhanta cited by Bhattotpala in his commentary on the Brihat Samhita are not found in this version.

(3) Romaka-Siddhanta.—Latadeva is the commentator on the Romaka-Siddhanta mentioned in the Panchasiddhantika. Brahmagupta A famous 7th-century mathematician and astronomer has also mentioned Latadeva’s name:

‘The daily ignorance of Srishena, Vishnuchandra, Pradyumna, Aryabhata, Lata, and Simha is proven because of the discrepancies in their calculations of eclipses and other phenomena.’ original: "श्रीषेण-विष्णुचन्द्र-प्रद्युम्नार्यभट-लाल-सिंहानाम् । ग्रहणादि-विसंवादात् प्रतिदिवसं सिद्धमज्ञत्वम् ॥"

That is to say—because the calculations for eclipses, risings, and settings by all these authors are seen to be contrary to direct observation, their lack of expertise is becoming daily renowned among the learned community. It is evident from the calculation style of this Siddhanta Siddhanta: A comprehensive astronomical treatise that it is composed based on some Roman or Greek system. The Ahargana The number of elapsed days from a fixed epoch is calculated for the meridian of Yavanapura Literally "City of the Greeks," often identified with Alexandria or a Greek-influenced center. Some speculate that the Romaka-Siddhanta was written in Sanskrit based on the books of the famous astronomer Ptolemy of Alexandria. Brahmagupta says that Srishena constructed the Romaka-Siddhanta based on the works of these four: Lata, Vasistha, Vijayanandi, and Aryabhata. Alberuni Alberuni was born in 895 Shaka era (973 CE) into the Islamic faith. Coming to India, he received education in the Puranas, Philosophy, and Astronomy from scholars. He had a great passion for astronomy. The book he wrote about India contains a detailed description of the astronomical knowledge of that time. The date of his Arabic work is 953 Shaka era (1031 CE). Its English translation is famous as Alberuni's India. A Hindi translation of the first volume has also been published by the Indian Press of Prayag. is also of this same opinion. Dr. Thibaut says that Srishena did not create the original Romaka, but rather used many texts of that time...