In Indian Astronomy Books, Radius is 1187 secs and Laplace gives the figure at .332. degrees, which works out to be a difference of 8 secs.
These two values prove that both Civilizations did not plagiarise from another, although Laplace took the credit for its duration, calling it the Laplace period. But we owe a lot to him who averred that the Decimal System is Indian / Hindu in Origin !
**** The great Jupiter – Saturn term. Amplitude .332 degrees in 918 years ***
ky = year1+3102 a = ky-4660 b = mod(a,918) c = b 12/918 e = c30
do case case e < 90 f = e case e > 90 .and. e < 180 f = 180-e case e > 180 .and. e < 270 f = e -180 case e > 270 .and. e < 360 f = 360 -e endcase