<Li> Use in other formulae </Li> <Tr> <Th> Properties </Th> </Tr> <Tr> <Td> <Ul> <Li> Irrationality </Li> <Li> Transcendence </Li> </Ul> </Td> </Tr> <Ul> <Li> Irrationality </Li> <Li> Transcendence </Li> </Ul>

Find out the great indian mathematician who worked on approximation of pi