An astronomical work, called the Surya-siddhanta (" knowledge of the Sun "), of uncertain authorship and probably belonging to the 4th or 5th century, was considered of great merit by the Hindus, who ranked it only second to the work of Brahmagupta, who flourished about a century later.
598), whose work entitled Brahma-sphuta-siddhanta (" The revised system of Brahma ") contains several chapters devoted to mathematics.
We refer to Bhaskara Acarya, whose work the Siddhanta-ciromani (" Diadem of an Astronomical System "), written in 1150, contains two important chapters, the Lilavati (" the beautiful [science or art] ") and Viga-ganita (" root-extraction "), which are given up to arithmetic and algebra.
English translations of the mathematical chapters of the Brahma-siddhanta and Siddhanta-ciromani by H.
Colebrooke (1817), and of the Surya-siddhanta by E.
With the respective and relative positions in the zodiac of the sun, moon and planets, the character of their action 1 Whitney, Notes to Surya-Siddhanta, p. zoo.