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

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Bapu Deva SASTRI and WILKINSON published an
English translation of the text in 1861. Yet the mathe-
matical aspect of the Siddhāntaśiromaṇi has remained a
terra incognita to students of Hindu Astronomy. While
Phalita-Jyotiṣa-continues to be studied in traditional
Sanskrit institutions, the Gaṇita-side of Astronomy is
reduced to a secondary position.
Realising that specialists in the twin fields of
Mathematics and Astronomy have been diminishing day
by day, Kendriya Sanskrit Vidyapeetha at Tirupati has
started a project entitled, "Coordination of Sanskrit
and Ancient Indian Sciences". Under this scheme,
Dr. Arka Somayaji has now come forward to give an
exposition and annotation of the Siddhāntaśiromaṇi in
simple English based on the language of modern
Astronomy for the benefit of the students and scholars
interested in the Khagola-śāstram.
Dr. Arka Somayaji is an eminent scholar in Mathe-
matics and Dynamic or Spherical Astronomy. He hails
from a family of "Siddhāntin-s". To whet his appetite
in learning the mnemonical methodology for compiling
an almanac, he studied Mathematics and Jyotiṣa (includ-
ing Spherical Astronomy). He learnt the Taittirīya-
saṁhitā under his brother, Dhulipala Venkatarama
Avadhani of Rajahmundry. He wrote a thesis on "A
Critical Study of the Ancient Hindu Astronomy", which
was published in 1972. He has to his credit eight works
including the Jyotirvijñānam (1964) and two Sanskrit
poetical compositions (Brahmañjali and the Hanumat-
vijaya-). He won the President's award in 1974.