Question

write about Aryabhatta and its contribution

Answer 1

Aryabhatta was the first of the major mathematician-astronomers from the classical age of Indian mathematics and Indian astronomy. 
He is the author of several treatises on mathematics and astronomy, some of which are lost. His main works are Aryabhatiya and Arya-siddhanta.
 
Aryabhatiya was particularly popular in South India, where numerous mathematicians over the ensuing millennium wrote commentaries. The work was written in verse couplets and deals with mathematics and astronomy. 

Arya-siddhanta circulated mainly in the northwest of India and, through Iran, had a profound influence on the development of Islamic astronomy.It is one of the earliest astronomical works to assign the start of each day to midnight. 

His contribution to mathematics:

Place value system and zero:
The place-value system, first seen in the 3rd-century Bakhshali Manuscript, was clearly in place in his work. While he did not use a symbol for zero, the French mathematician Georges Ifrah argues that knowledge of zero was implicit in Aryabhata's place-value system as a place holder for the powers of ten with null coefficients. 

Answer 2

Aryabhatta is a first Indian Mathematician-astronomer. Due to his major and helpful inventions, he is also known as Physicist. One of his major discovery is the "discovery of pi value". The π (pi) which we generally use for doing mathematical calculation. The value of pi which we have accepted is 62832/20000 = 3.1416. This value was found by Aryabhatta.

He is one of the greatest Astronomer and  Mathematician of India. The first  unmanned Indian mission was named as "Aryabhatta" in the memory of Aryabhatta. Aryabhatta is to be said from the Indian state Kerala. He had done a lot of inventions and discoveries which has really helpful to the world a lot.

Additional information:

• Aryabhatta was born on 476 AD at patliputra.
• Aryabhatta was died on 500 AD.
• Era: Gupta Empire
• Nationality - Indian
• Major discovery - Found the value of pi.