Aryabhata, a renowned mathematician and astronomer from ancient India, is widely recognized for introducing the concept of zero and its use in the decimal system.

The Kerala School of Mathematics, active between the 14th and 16th centuries, is known for its groundbreaking work in calculus, particularly the development of the concept of infinitesimals and the series expansion of trigonometric functions.

Brahmagupta, a prominent mathematician and astronomer from ancient India, is credited with introducing the Fibonacci sequence, also known as the golden ratio, in his work.

The Sulba Sutras, a collection of ancient Indian texts, are primarily concerned with geometry, specifically the construction of altars and other structures using geometric principles.

Bhaskara II, a renowned mathematician from ancient India, made significant contributions to the study of Diophantine equations, which involve finding integer solutions to algebraic equations.

The Aryabhatiya, a seminal work in ancient Indian mathematics, is attributed to the renowned mathematician Aryabhata, who lived in the 5th century CE.

Brahmagupta, a prominent mathematician from ancient India, is credited with introducing the concept of negative numbers and developing rules for their operations.

The Lilavati, a renowned work by the Indian mathematician Bhaskara II, primarily focuses on algebra, covering topics such as arithmetic, quadratic equations, and indeterminate equations.

Srinivasa Ramanujan, a brilliant Indian mathematician from the 20th century, made significant contributions to the theory of numbers, including his work on modular forms and the Riemann hypothesis.

The Surya Siddhanta, an ancient Indian astronomical text, is primarily concerned with trigonometry, providing rules for calculating trigonometric functions and solving problems related to celestial bodies.

Aryabhata, a renowned mathematician from ancient India, is credited with introducing the concept of the sine function and developing methods for calculating its values.

The Brahmasphuta Siddhanta, a significant work in ancient Indian mathematics, is attributed to the renowned mathematician Brahmagupta, who lived in the 7th century CE.

Srinivasa Ramanujan, a brilliant Indian mathematician from the 20th century, made significant contributions to the theory of continued fractions, including his work on the Rogers-Ramanujan identities.

The Ganita Sara Sangraha, a renowned work by the Indian mathematician Mahavira, primarily focuses on algebra, covering topics such as arithmetic, quadratic equations, and indeterminate equations.

Aryabhata, a renowned mathematician from ancient India, is credited with introducing the concept of the cosine function and developing methods for calculating its values.