Indian Mathematicians and Astronomers

Brahmagupta was an Indian mathematician and astronomer who lived in the 6th century CE. He made significant contributions to the field of numerical analysis, including the development of interpolation methods and the Brahmagupta formula for solving quadratic equations.

Srinivasa Ramanujan was a brilliant Indian mathematician who lived in the early 20th century. He made remarkable contributions to various branches of mathematics, including continued fractions, where he discovered several new and elegant formulas.

Bhaskara II was one of the first mathematicians to develop the concept of the derivative, which is a fundamental concept in calculus. He used this concept to solve various problems related to motion and astronomy.

Madhava of Sangamagrama is recognized for his work on the concept of the integral, which is another fundamental concept in calculus. He developed several methods for approximating integrals, including the trapezoidal rule and the Gregory-Leibniz series.

C.R. Rao is a renowned Indian statistician and mathematician who made significant contributions to the field of data science. He developed various statistical methods and techniques that are widely used in data analysis and machine learning.

P.C. Mahalanobis was an Indian statistician who made significant contributions to the theory of estimation and hypothesis testing. He developed the Mahalanobis distance, which is a measure of the distance between two multivariate data points.

M.G. Kendall was an Indian statistician who made significant contributions to the development of non-parametric statistical methods. He is known for his work on rank correlation and the Kendall tau coefficient.

S.R.S. Varadhan is an Indian-American mathematician who made significant contributions to the theory of large deviations. He received the Abel Prize in 2007 for his work in this area.

R.C. Bose was an Indian mathematician and statistician who made significant contributions to the theory of information and coding theory. He is known for his work on orthogonal arrays and error-correcting codes.

V.P. Godambe was an Indian statistician who made significant contributions to the development of statistical methods for analyzing categorical data. He is known for his work on contingency tables and log-linear models.

K.R. Parthasarathy is an Indian mathematician who made significant contributions to the theory of optimal stopping. He is known for his work on the Gittins index and the secretary problem.

Varāhamihira, a renowned astronomer and mathematician, is credited with establishing the Ujjain Observatory.

Aryabhata, a renowned astronomer and mathematician, developed a geocentric model of the universe, where the Earth was considered the center of the universe.

Aryabhata, in his treatise 'Aryabhatiya,' proposed that the Earth rotates on its axis, a revolutionary concept at the time.

None of the ancient Indian astronomers mentioned developed a heliocentric model of the universe.