[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Mathematics in Ancient and Medieval India](https://indike.org/pramana/ins.science.bag-1979) › c8.27 # Mathematics in Ancient and Medieval India c8.27 Mathematics in Ancient and Medieval India c8.27 - **Language:** English ### [c8.27](https://indike.org/pramana/ins.science.bag-1979.c8.27) and Sin ((π)/7) = .4313... which are correct upto 2 places of decimals. The values of Sin π, Sin (π)/2 and Sin (π)/3 come out to be accurate. Bhāskara I ascribes this formula to Āryabhaṭa I¹. It occurs in the \*Brāhma-sphuṭasiddhānta\* and in several later works also.² - [Previous: c8.26](https://indike.org/pramana/ins.science.bag-1979.c8.26) - [Next: c8.28](https://indike.org/pramana/ins.science.bag-1979.c8.28) - [Up: c8](https://indike.org/pramana/ins.science.bag-1979.c8) ## Cites (1) - [Brāhmasphuṭasiddhānta](https://indike.org/pramana/in.astro.siddhanta.early.brahmasphutasiddhanta) — Brahmagupta, Sanskrit --- Source: [https://indike.org/pramana/ins.science.bag-1979.c8.27](https://indike.org/pramana/ins.science.bag-1979.c8.27) · Pramāṇa