सिद्धान्तशिरोमणि: गणिताध्याय (भास्कराचार्य - ग्रहगणित, मध्यमाधिकार व स्पष्टाधिकार सटीक)

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correct, for the simple reason that, even today, crude
works exist side by side with advanced works. The
simple fact that a Vedāṅgajyautiṣa belonging to 1180
B.C. has been unearthed and nothing else, is not a
complete proof that there did not exist more advanced
texts some where else in such a big country like India
, especially when locomotion or transport was difficult.
Just one more thought, I place before the learned
historians, which is pertinent to this context. According
to geology, biology and some other similar modern
sciences, the first man came into the cosmic picture some
millions of years ago. If that be so, how is it that we say
that man remained stupid all these years and happened
suddenly to blossom into a genius one fine morning round
about Eighteen fifties (1850 A.D.) whereafter came all
Scientific discoveries in a series, as if by the waving of a
magic wand ? It could not be so, as if, we are the chosen
few of God. Civilizations must have been there, which
got buried in the bosom of the earth, as has been revealed
by the Mohenzadaro excavations. Hence we are not
right in saying that the ancient Hindu civilization was so
primitive at 1150 B.C. as is reflected in the Vedāṅga
Jyotiṣa. This is another and more important reason that
this author makes bold to place before the historians as
to why he (the author) does have faith in the statements
of Aryabhaṭa, Varāhamihira and Brahmagupta who said
that they were peacing out the knowledge contained in
the then extant works signifying at the same time that
many more books were lost even to them.
In this commentary of mine, I have chosen to keep
the commentary away from the Sanskrit text and Bhās-
kara’s own Vāsanā Bhāṣya, for, otherwise the book grows
bulkily unwieldy. I have chosen to keep silent over
passages which do not call for a mathematical elucidation.
Here and there I have chosen to present what modern
astronomy presents in some particular contexts, so that,