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

FOREWORD
Bhāskarācārya, the Second (c. 1100 A.D.) was one
of the greatest mathematicians and astronomers of the
World. He anticipated modern theory on the convention
of signs (minus × minus = plus) and KEPLER’S method
of determining the surface and the volume of a sphere.
Six hundred years before the calculus of LEIBNITZ
and NEWTON, Bhāskara worked at the differential
coefficient. He raised and solved the problem —
67 x² + 1 = y²
—a problem which FERMAT resolved after 500 years.
The credit goes to Bhāskarācārya for having delineated
the image of Jyotiṣa in its proper contours and graces.
The Siddhāntaśiromaṇi is often said to be the
magnum opus of Bhāskarācārya. This monumental
treatise consists of four parts : (1) Līlāvatī (arithmetic),
(2) bījagaṇita- (algebra), (3) Golādhyāya- (Trigonometry
including spherical trigonometry) and (4) Grahagaṇita-
(Planetary motion).
This work was edited with the Vāsanābhāṣya- of
the author by Bapu Deva SASTRI. Muralidhar JHA
brought out two commentaries —the Vāsanāvārttika- of
Nṛsiṁha (1621 A.D.) and the Marīci of Munīśvara (1635
A.D.) on the first Chapter of the Gaṇitādhyāya (1917).
Girija Prasad DVIVEDI’s commentaries in Sanskrit
and Hindi (volumes I & II) appeared in 1911 and 1926.