Bhaskara was a brilliant astronomer, mathematician and engineer and the most influential of the early Indian mathematicians.
He became the head of the astronomical observatory in Ujjain, which was a major center for mathematical studies.
He was born on the site of the modern city of Bijabur, in southwestern India. He is the oathero fo the SIddhanta Siromani, in four parts, a treatise on algebra and geometric astronomy. Bhaskara said that his work is a compendium of knowledge a sort of textbook of astronomy and mathematics.
Bhaskara advanced greatly the acceptance of negative and irrational numbers in algebraic calculations: he acknowledged that the square root of a positive number could be positive or negative had formally operated upon irrational numbers, providing algebraic expressions for the sum, product and quotient of two irrational numbers.
Bhaskara (1114-1185 CE)
