Aryabhata was a great mathematician and astronomer in Ancient India. He wrote many mathematical and astronomical treatises. His chief work was the ‘Ayrabhatiya’ which was a compilation of mathematics and astronomy.
Ayrabhatiya covers several branches of mathematics such as algebra, arithmetic, plane and spherical trigonometry. Included in it are theories on continued fractions, sum of power series, sine tables, and quadratic equations.
Aryabhata also did a considerable amount of work in astronomy. He knew that the Earth is rotating on an axis around it. He discovered the position of nine planets and stated that these also revolved around the sun.
Aryabhata stated that the correct number of days in a year is 365. He was the first person to mention that the Earth was not flat but, in fact spherical shape. This great man has been honored in many ways. The first Indian satellite was named ‘Aryabhata’. A lunar crater and Indian research centre also bear his name.