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mathematicians of the world participated in the deliberations. On this occasion a critical edition of Aryabhata's remarkable work 'Aryabhatiya', with associated commentaries as edited by Dr. Kirpa Shankar Shukla of Lucknow, was released.
The influence of this school continued unabated for several coitaris; after Aryabhata.
BHADRA BAHU Bhadrabahu came down from Bihar (Magadha) in 4th century B. C. and settled down at Sarvana Belgola in the Mysore state. On his way he passed through Ujjain and halted there for s..no time. He was one of the great preceptors of the Jainas and at the same time an astronomer and a mathematician too. He could reproduce from memory the entire canonical literature of the Jainas and was befittingly called a Srutakevalin. Bhadrabahu is the author of two astronomical works :
1. A commentary of the Surya Prajnapti (500 B. C.), and 2. An original work called the Bhadra bahavi Samihita.
UMASWATI Umaswati was a reputed Jaina metaphysician. According to Swetambar Jains, he was born at a place called Nyagrodhika and lived in the city of Kusumpura in about 150 B. C. According to this sect. his name is said to be a combination of the names of his parents, the father Swati and the mother Uma. But Digambar Jains' version is that his name was Umaswami and not Umaswati and that he lived in the years 125 A. D.219 A. D. In the present paper Swetambar Jains' version is taken as accepted. The earliest commentator of Umaswati is Siddhasena Gani or Divakara who lived in 56 B. C.
Tatryartha-dhigama-Sutra-Bhāshya is an important work of Umaswati. In this text. an attempt has been made to explain the nature of things and the authority of this work is acknowledged both by the Swetambaras and the Digambaras. Umaswati was also the author of another work known as Ksetra Samasa ("Collection of places"). This work is also known as Jambudvipa samasa. This work deals with geography and mensuration. It may be noted that setra samasa and Karana bhavana are two classes of works that give in a nutshell the mathematical calculations employed in Jaina canonical works. The earliest Kestra samasa was by Umaswati. It is noteworthy that Umaswati was not a mathematician. The mathematical results and formulae as quoted in his work, it seems, were taken from some treatise on mathematics known at his time.
5. TOPICS IN MATHEMATICS
According to the Sthanaga Sutra" (before 300 B. C.) the topics of discussion in mathematics (Sankhyana or the "Science of Numbers") are ten in number:
1. At Kusumpura there was another astronomer and mathematician of the name of Aryabhata who was
anterior to the Aryabhata of 476 A. D. See : "Two Aryabhatas of Al-Biruni".
Bull. Cal. Math. Sc. Vol. XVII, 1926, p. 68. 2. Sutra 11. Commentary on Surya Prajnapti by Malayagiri (c. 1150). 3. This work was found by Buhler.
See report on Sanskrit manuscripts 1874-1875 A. D. p. 20.
About this work it has not been established that it belonged to the Bhadrabahu in question. 4. See Sutra 747.
"Parikammam vavaharo rajju rasi Kalasavamme ya Javantavati vaggo ghano tataka vaggavaggo vikappo ta".
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