Nārāyaṇa was a renowned mathematician and astronomer from Kerala, India, who lived in the 14th century.

Nārāyaṇa's most famous work is the Ganita-sara-sangraha, a comprehensive treatise on mathematics that covers topics such as arithmetic, algebra, geometry, and astronomy.

Nārāyaṇa developed a method for solving quadratic equations using a technique known as the 'chakravala' method, which is considered a significant contribution to algebra.

Nārāyaṇa's work in astronomy is notable for his accurate predictions of solar and lunar eclipses, which demonstrated his expertise in astronomical calculations.

Nārāyaṇa's work had a profound impact on later mathematicians, influencing the development of mathematics in Kerala, being translated into Arabic and Persian and spreading to the Islamic world, and inspiring European mathematicians during the Renaissance.

The 'chakravala' method, developed by Nārāyaṇa, is a significant contribution to algebra as it provides a systematic approach for solving quadratic equations.

Nārāyaṇa's work on astronomy is significant for his contributions in developing a model for the motion of planets, calculating the circumference of the Earth, and accurately predicting solar and lunar eclipses.

Nārāyaṇa's work had a profound historical impact, influencing the development of mathematics in Kerala, being translated into Arabic and Persian and spreading to the Islamic world, and inspiring European mathematicians during the Renaissance.

Nārāyaṇa's work on geometry is significant for his contributions in developing a method for calculating the area of a triangle, discovering the concept of the Pythagorean theorem, and formulating a method for constructing regular polygons.

Nārāyaṇa's work on arithmetic is significant for his contributions in developing a method for solving linear equations, discovering the concept of negative numbers, and formulating a method for calculating square roots.

Nārāyaṇa's work on astronomy had a profound historical impact, influencing the development of astronomy in Kerala, being translated into Arabic and Persian and spreading to the Islamic world, and inspiring European astronomers during the Renaissance.

Nārāyaṇa's work on algebra is significant for his contributions in developing a method for solving quadratic equations, discovering the concept of negative numbers, and formulating a method for calculating square roots.

Nārāyaṇa's work on arithmetic had a profound historical impact, influencing the development of arithmetic in Kerala, being translated into Arabic and Persian and spreading to the Islamic world, and inspiring European mathematicians during the Renaissance.

Nārāyaṇa's work on geometry is significant for his contributions in developing a method for calculating the area of a triangle, discovering the concept of the Pythagorean theorem, and formulating a method for constructing regular polygons.

Nārāyaṇa's work on geometry had a profound historical impact, influencing the development of geometry in Kerala, being translated into Arabic and Persian and spreading to the Islamic world, and inspiring European mathematicians during the Renaissance.