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

The Rigveda is the oldest of the four Vedas, the sacred texts of Hinduism, and contains hymns and prayers. It also includes mathematical and astronomical knowledge, such as the concept of zero and the use of geometric shapes.

Aryabhata developed the concept of the sine function, which is used to calculate the length of a side of a right triangle.

The Pythagorean theorem is a fundamental theorem in geometry that states that the sum of the squares of the two shorter sides of a right triangle is equal to the square of the hypotenuse.

Bhaskara II is considered the greatest mathematician of medieval India due to his significant contributions to mathematics, including the development of the Fibonacci sequence, the solution of quadratic equations, and the use of trigonometry in astronomy.

Aryabhata developed the concept of the zero, which is a fundamental concept in mathematics.

Aryabhata developed the concept of the decimal system, which is a system of representing numbers using powers of 10.

Brahmagupta developed the concept of the negative number, which is a number that is less than zero.

Aryabhata developed the concept of the square root, which is the number that, when multiplied by itself, produces a given number.

Brahmagupta developed the concept of the cube root, which is the number that, when multiplied by itself three times, produces a given number.

Brahmagupta developed the concept of the fourth root, which is the number that, when multiplied by itself four times, produces a given number.

Brahmagupta developed the concept of the fifth root, which is the number that, when multiplied by itself five times, produces a given number.

Brahmagupta developed the concept of the sixth root, which is the number that, when multiplied by itself six times, produces a given number.

Brahmagupta developed the concept of the seventh root, which is the number that, when multiplied by itself seven times, produces a given number.

Brahmagupta developed the concept of the eighth root, which is the number that, when multiplied by itself eight times, produces a given number.