History of Hindu Mathematics: A Source Book v1.c8.s1.12

v1.c8.s1.12

Besides these there are a number of astronomical works, known as *Siddhânta*, each of which contains a section dealing with mathematics. Âryabhaṭa I (499) was the first to include a section on mathematics in his *Siddhânta*, the *Âryabhaṭîya*. Brahmagupta (628) followed Âryabhaṭa in this respect, and after him it became the general fashion to include a section on mathematics in a *Siddhânta* work.¹ The earlier *Siddhânta* works do not possess this feature. The *Sûrya-siddhânta* (*c.* 300) does not contain a section on mathematics. The same is true of the *Vâsiṣṭha*, the *Pitâmaha* and the *Romaka* Siddhântas. Bhâskara I and Lalla,² although zealous followers of Âryabhaṭa I, did not emulate him in including a section on mathematics in their astronomical works.