﻿242 ON THE ASTRONOMICAL COMPUTATIONS 



" Such opinions would have no foundation, as I 

 " shall proceed to show. Brahmagupta\ rules ar6 

 " consistent with the practice of the Pandits his pre- 

 " decessors ; and he formed them from the Purana 

 " Vishnu Dhermottara, wherein is contained the 

 " Brahma Siddhanta ; and the periods given by Ary- 

 " abhatta are derived from the Parasera Siddka?ita : 

 " the precepts of the Munis are therefore the autho- 

 " rities of Brahmagupta, Aryabhatta, and Bhasca- 

 " racharya, whose rules cannot be deceitful. The 

 * f Munis themselves differed with regard to the num- 

 " ber of Saimn days in a Yug, which is known from 

 li the Pancha Siddhanta, composed by Vara Acharya ; 

 " wherein are proposed two methods of computing 

 " the sun's place, the one according to the Surya 

 " Siddhanta. the other according to the Romaca Stdd- 

 " Jia/ita ; whence it appears that there were diffe- 

 M rent rules of computation even among the Munis. 

 * c It is also mentioned in the Tica on the Varaha 

 " Sanhita, that, according to the Paidastya Siddhanta, 

 il there was formerly a different number of Savan 

 " days estimated in a Yug. The maxims therefore of 

 '-' Brahmagupta and the other two, agreeing with those 

 ** of the Munis, are right ; but, should it even be 

 " supposed that the Munis themselves could be 

 " mistaken, yet Brahmagupta and the other two had 

 " the sanction of the Vedas, which in their numerous 

 <4 Sac'has (branches) have disagreements of the same 

 " kind ; and, according to the Sacalya Sanhita, 

 " Brahma, in the revelation he made to Nared, told 

 " him, although a circumstance or thing were not 

 < ; perceptible to the senses, or reconcileable to rea- 

 " son, if authority for believing it should be found 

 " in the Vedas, it must be received as true. 



" If a planet's place, computed both by the Surya 

 " Siddhanta and Parasera Siadhanta % should be found 



