Aryabhata, an Indian mathematician and astronomer, is credited with developing the concept of zero in the 5th century CE.

The Yajurveda, one of the four Vedas, contains the first known use of the decimal system in the 1st millennium BCE.

Bhaskara II, an Indian mathematician and astronomer, developed the Fibonacci sequence in the 12th century CE.

The Baudhayana Sulba Sutra, an ancient Indian mathematical text, contains the first known use of negative numbers in the 8th century BCE.

Brahmagupta, an Indian mathematician and astronomer, developed the concept of the square root in the 7th century CE.

The Apastamba Sulba Sutra, an ancient Indian mathematical text, contains the first known use of the Pythagorean theorem in the 6th century BCE.

Aryabhata, an Indian mathematician and astronomer, developed the concept of the sine function in the 5th century CE.

The Katyayana Sulba Sutra, an ancient Indian mathematical text, contains the first known use of the cosine function in the 4th century BCE.

Bhaskara II, an Indian mathematician and astronomer, developed the concept of the tangent function in the 12th century CE.

The Baudhayana Sulba Sutra, an ancient Indian mathematical text, contains the first known use of the secant function in the 8th century BCE.

Bhaskara II, an Indian mathematician and astronomer, developed the concept of the cosecant function in the 12th century CE.

The Katyayana Sulba Sutra, an ancient Indian mathematical text, contains the first known use of the cotangent function in the 4th century BCE.

Bhaskara II, an Indian mathematician and astronomer, developed the concept of the versine function in the 12th century CE.

The Baudhayana Sulba Sutra, an ancient Indian mathematical text, contains the first known use of the haversine function in the 8th century BCE.

Bhaskara II, an Indian mathematician and astronomer, developed the concept of the exsecant function in the 12th century CE.