Mensuration of quadrilaterals in the L\=ılāvat\=ı

Abstract

Mensuration with quadrilaterals had received attention in the Siddhānta tradition at least since Brahmagupta. However, in Bhāskaracārya's L\=ılāvat\=ı we come across some distinctively new features. In this paper an attempt is made to put the development in historical perspective.

arXiv comment14 pages. This is the text version of the talk given at the international conference Bhāskara900, organized by the Vidya Prasarak Mandal, Thane, in September 2014, on the occasion of the 900th birth anniversary of Bhāskarācārya, and is to appear in the Proceedings of the conference