He is refered as Bhāskara II to avoid confusion with Bhāskara I (of 7th century AD). He was born near Vijjadavida (Bijapur in modern Karnataka) and lived between 1114-1185 AD. Bhaskaracharya (Bhaskara II)He represented the peaks of mathematical knowledge in the 12th century and was the head of the astronomical observatory at Ujjain, the leading mathematical centre of ancient India.
#Bhaskara II’s family belonged to Deshastha Brahmin community, which served as court scholars at Kings forts. He learned Mathematics from his father Maheswara, an astrologer. He imparted his knowledge of mathematics to his son Lokasamudra, whose son had started a school to study the works of his grand father in 1207 AD.
“A positive number has two square-roots (a negative root & a positive root)“. This was published in this text for the very first time.
It contains concepts of positive & negative numbers, zero, the ‘unknown‘ (includes determining unknown quantities), surds, simple equations & quadratic equations.
He is also known for his calculation of the time required (365.2588 days) by the Earth to orbit the Sun which differs from the modern day calculation of 365.2563 days, by just 3.5 minutes! The law of Gravitation had been proved by Bhaskara 500 years before it was rediscovered by #Newton.