Bhaskara

Bhaskara (born 1114), who was from the Karnataka region, was an outstanding mathematician and astronomer. Amongst his mathematical contributions is the concept of differentials.  He was the author of Siddhanta Shiromani, a book in four parts:

• Lilavati on arithmetic
• Bijaganita on algebra
• Ganitadhyaya on astronomy
• Goladhyaya on astronomy

Bhaskara’s epicyclic eccentric theories of planetary motions are more developed than in the earlier siddhantas.