Mathematics in Ancient and Medieval India c6.s9.36

c6.s9.36

This result perhaps was also known to Brahmagupta¹ and Mahāvīra.² The same formula is also found in the work of Bhāskara II³ ( c 1150 A. D. ). A similar formula is given by the Greek author Heron⁴ in the first century A. D.