The Yajur Veda contains the earliest known mathematical concepts in India, including the use of numbers and geometric figures.

Aryabhata (476-550 CE) is considered the father of Indian mathematics for his groundbreaking work in astronomy, mathematics, and trigonometry.

The decimal system, which uses 10 digits (0-9), originated in India and is now the most widely used number system in the world.

Brahmagupta (598-668 CE) developed the concept of zero and introduced it into the Indian number system.

Bhaskara II (1114-1185 CE) was the first mathematician to describe the Fibonacci sequence in his book, Lilavati.

Brahmagupta was the first mathematician to introduce the concept of negative numbers and develop rules for their operations.

Aryabhata developed the concept of the sine function and introduced it into trigonometry.

Bhaskara II introduced the concept of the cosine function and developed trigonometric identities involving sine and cosine.

Bhaskara II developed the concept of the tangent function and introduced it into trigonometry.

Bhaskara II introduced the concept of the secant function and developed trigonometric identities involving secant and tangent.

Bhaskara II introduced the concept of the cosecant function and developed trigonometric identities involving cosecant and sine.

Bhaskara II introduced the concept of the cotangent function and developed trigonometric identities involving cotangent and tangent.

Baudhayana (800 BCE) developed the concept of the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Aryabhata introduced the concept of the arithmetic mean, which is the sum of a set of numbers divided by the number of numbers in the set.

Brahmagupta developed the concept of the geometric mean, which is the nth root of the product of n numbers.