Page 269 - 89 history of astronomy_opt

methods of geometry, it is simply marvel-
lous that he reached to such a degree of
accuracy. He invented the infinitesimal cal-
culus which is more suited for such calcu-
lations, but had he expressed his results in
that language he would have been unintel-
ligible to many.
Newton’s method of calculating the pre-
cession of the equinoxes, already referred to,
269