The Yajurveda is one of the four Vedas, the sacred texts of Hinduism, and it contains mathematical knowledge, including the use of geometric figures and the concept of infinity.

Aryabhata is considered to be the father of Indian mathematics due to his significant contributions to the field, including the development of the decimal system and the concept of zero.

The Pythagorean Theorem is a fundamental theorem in geometry that relates the lengths of the sides of a right triangle.

Brahmagupta is credited with developing the concept of the zero, which revolutionized mathematics and made it possible to represent numbers more efficiently.

Bhaskara II wrote the book 'Lilavati', which is a collection of mathematical problems and solutions covering various topics such as arithmetic, algebra, and geometry.

Brahmagupta developed the concept of negative numbers, which expanded the scope of mathematical operations and allowed for the representation of debts and other negative quantities.

Varahamihira developed the Fibonacci sequence, a series of numbers in which each number is the sum of the two preceding ones, which has applications in various fields such as mathematics, computer science, and biology.

Aryabhata developed the concept of the sine function, which is a trigonometric function that measures the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle.

Bhaskara II developed the concept of the cosine function, which is a trigonometric function that measures the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle.

Varahamihira developed the concept of the tangent function, which is a trigonometric function that measures the ratio of the length of the opposite side to the length of the adjacent side in a right triangle.

Aryabhata developed the concept of the secant function, which is a trigonometric function that measures the ratio of the length of the hypotenuse to the length of the adjacent side in a right triangle.

Bhaskara II developed the concept of the cosecant function, which is a trigonometric function that measures the ratio of the length of the hypotenuse to the length of the opposite side in a right triangle.

Varahamihira developed the concept of the cotangent function, which is a trigonometric function that measures the ratio of the length of the adjacent side to the length of the opposite side in a right triangle.

Aryabhata developed the concept of the versine function, which is a trigonometric function that measures the difference between the sine of an angle and 1.

Bhaskara II developed the concept of the haversine function, which is a trigonometric function that measures half the versine of an angle.