Isaac Newton is widely regarded as the father of calculus, along with Gottfried Wilhelm Leibniz.

Bhaskara II, also known as Bhaskaracharya, made significant contributions to calculus in the 12th century.

Madhava of Sangamagrama developed the Taylor series expansion method, which is also known as the Taylor-Maclaurin series.

Nilakantha Somayaji made significant contributions to infinite series and calculus in the 16th century.

Indian mathematicians used the Gregory-Leibniz series to approximate the value of pi.

Gangesha Upadhyaya made significant contributions to differential calculus in the 18th century.

Srinivasa Ramanujan developed the Ramanujan-Hardy theorem, which relates to the Riemann zeta function.

S.L. Kalla made significant contributions to fractional calculus in the 20th century.

Indian mathematicians developed the Picard-Lindelöf theorem to solve differential equations.

J.C. Bose made significant contributions to calculus of variations in the 19th century.

Indian mathematicians developed the trapezoidal rule to find the area under a curve.

P.L. Bhatnagar made significant contributions to numerical analysis in the 20th century.

Indian mathematicians developed the method of characteristics to solve partial differential equations.

S.N. Bose made significant contributions to integral calculus in the 19th century.

Indian mathematicians developed the disk method to find the volume of a solid of revolution.