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-YATEENDRASURI SMARAK GRANTH
Commatasara of Namicandra Siddhantacakravarti, vols. 1-4, Bhartiya Jnana Pitha, New Delhi, 1978-81.
The Ganitasara samgraha of Mahaviracarya, ed, and trans. by L.C. Jain, Sholapur, 1963. A hecent article short in the Ganita Bharati, vol. 9 (1987), numbers 1-4 P. 54-56, by Ganitanand, Ranchi, has appeared on the date of sridhara. His remarks are worth mentioning here, S.B. Dixit (1896) had found a reference to sridhara by name in an old manuscript of Mahavira's Ganitasara samgraha (ca. 85), and so put the former before the later..... Royal Asiatic Society, Bombay Rs. 230 of GSS also ends with the words (ABORI? Vo. 31, p. 268)
The similarity of several rules and of many other features between the works of sridhara and mahavira is accepted by scholars. Both may have drawn from a third and common source which is not known nor likely to be known. But most of the scholars considered Mahavira as borrower (he himself named his work as a "collection").
The date circa 799 A.D. was assigned to Sridhara by N.C. Jain, by equating him to the Jaina author of Jyotirhnanavidhi (799). And to reconcile salutations Sivam' and 'Jinam' of the different manuscripts it has been suggested that the same Sridhara, after writing mathematical works, may have turned a Jaina toward the end of his life.
The above note also gives the opinion of B. Dutta and A.N. Singh as 750 A.D. as the probable date of Sridhara. It appears that the common source material for both of the above mathematicians have been the Kasayapahuda and the Satkhandagama and their commentaries which might have been before them. As the modieval Jaina writers have been writing Jina and Siva for the same daity, some scribe might have got it changed under certain unknown circumstances. It does not seem possible that Sridhara could have availed the opportunity of the Jaina source material as a non-Jaina,
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and he must have compiled the work as a Jaina. It also seems possible that under certain circumstances he might have adopted Saivism but whether he wrote two such manuscripts after his conversion is doubtful. Thus looking into the needs of the Digambara Jaina School of Mathematics in the South, and both were Jainas in the Digambara Jaina Schools of Mathematics For this purpose of convincing argument one may see the project work on the Labdhisara of Namicandra Siddhantackaravarti, Indian National Science Academy, 1984-87, by L.C. jain.
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Mention has been made by N.C. Jain while he was at Arrah Jaina Siddhanta Bhavana, and this manuscript is not available now.
Vide The Section of Mathematics in the Science and Civilization in China vol.3., by J. Needham and W. Ling, Cambridge, 1959.
These texts are in several volumes and have gone out of print. New editions of the former are now coming out of the press. Sathaandgama of Acarya Puspadanta and Bhutabali, Books 1-16, Amaroti. Vidisha, 1939-1959. Cf. Also, Kasaya Pahuda of Gunabhadracharya, alongwith the Jayadhavala commentary of Virsenacarya and Jinasenacarya, vol. 1-13, and the following Mathura, 1944..
For the texts of the Svetambara Jaina School, cf. the exhaustive article, The Jaina School of Mathematics, by B.B. Dutta, Bul. Cal. Math. Soc., vol. xxi, no. 2, 1929, pp. 115-145.
For details, see the 'Jaina Astronomy' by Dr. S.S. Lishk, (1978), Doctoral Thesis approved by the (Patiala) Punjabi University, 1987, Vidyasagara Publications, Delhi. Ct. also Jain, L.C., (1976). On the Spira-elliptic Motion of the Sun implicit in the Tiloyapannatti, IJHS, vol. 13, no. 1, 1978, pp. 42-49.
Jain, L.C. System Theory in Jaina School of Mathematics, IJHS, Vol. 14, no.1, 1979, pp. 29-63.
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