﻿24<> © N T-HE ASTRONOMICAL COMPUTATIONS 



" therefore be computed from the point of time hero- 

 *' stated, as the beginning of Brahma's day, and not 

 " as Brahma gupt a and others direct, from the begin- 

 " ning of the Calpa ; which will not be found to an- 

 " swer. 



" Other men say, that rules derived from the Ganita 

 ** Sastra and agreeing with observation, are right; 

 " that any period deduced from such a mode of com- 

 *' putation, and the planets determined to have been 

 * c then in the first of Mesha, may be assumed ; that 

 " it will therefore answer either way, to consider these 

 " motions as beginning with the Calpa , or after the 

 lc above-mentioned period of it was expired. This 

 " however is not true ; for in the instance of Mangala 

 ** there will be found a great difference, as is here 

 " shown. The revolutions of Mangala in a Calpa, 

 " according to Brahnagipta^ are 2296828522, and, 

 " by the rule of proportion, the revolutions of Man- 

 " gala'm 1 7064000 years are 9072472 7 , 28°o'i6"*. 

 " For any other planet, on trial, a similar disagree- 

 " ment will be found, and the proposition of comput- 

 " ing from either period must be erroneous. More- 

 * f over, of what use is it to make computations for a 

 " space of time, when the planets and their motions 

 " were not in being ? 



f< It might, however, from the foregoing circum- 

 '* stances, be imputed to Brahmagupta and the 

 " rest, that they have given precepts through igno- 



#n „■ , ReTolutions. 



- 22o6mSc42X TTC64.OOO _ , ., 



Becaufe -— *■ — ;r^~- =? Q072472 7 f 28 o 16 



mt,u " v ' 432COOPOOO ' ' T/ ' 



