Brahmagupta is widely recognized as the father of Indian algebra for his groundbreaking work in the 7th century.

Brahmagupta's treatise, Brahmasphutasiddhanta, is a seminal work that includes substantial contributions to algebra, including the introduction of negative numbers and the solution of quadratic equations.

Aryabhata is credited with introducing the concept of zero as a placeholder and a number in his work, Aryabhatiya, in the 5th century.

Brahmagupta's formula is a quadratic equation solver that provides a general solution for finding the roots of a quadratic equation.

Bhaskara is renowned for his contributions to indeterminate equations and Diophantine analysis, including his work on Pell's equation and other Diophantine problems.

The Chakravala method is a cyclic algorithm developed by Indian mathematicians for solving indeterminate equations, particularly Pell's equation.

Brahmagupta is credited with introducing the concept of negative numbers and developing rules for their operations in his treatise, Brahmasphutasiddhanta.

Bhaskara's treatise, Lilavati, is a comprehensive work on mathematics that includes substantial contributions to algebra, arithmetic, and geometry.

Bhaskara is renowned for his work on cubic equations and the development of the cubic formula, which provides a general solution for finding the roots of a cubic equation.

Bhaskara's formula is a cubic equation solver that provides a general solution for finding the roots of a cubic equation.

Aryabhata is credited with introducing the concept of irrational numbers and developing methods for approximating their values.

Aryabhata developed a method for approximating the value of pi, which involves calculating the area of a circle using a polygon with a large number of sides.

Bhaskara is renowned for his work on Diophantine equations and the development of the Pell's equation, which is a famous indeterminate equation.

Bhaskara's equation, also known as Pell's equation, is a famous indeterminate equation that involves finding integer solutions to a quadratic equation.

Aryabhata is credited with introducing the concept of the golden ratio, also known as the divine proportion, and using it in his mathematical calculations.