[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Indian Mathematics](https://indike.org/pramana/ins.science.kaye-1915) › c9.26 # Indian Mathematics c9.26 Indian Mathematics c9.26 - **Language:** English ### [c9.26](https://indike.org/pramana/ins.science.kaye-1915.c9.26) | Date Circa. | Authority. | Value of π | | A.D. 150 | Ptolemy | 3 17/120=3·14166. | | ,, 263 | Liu Hiu | 3 7/50=3·14. | | ,, ? | Puliśa | 3 177/1250=3·1416. | | ,, 450 | Tsu Ch'ung-chi | 3 1/7=3·14286. | | ,, 500 | Aryabhaṭa | 3=3· | | | ,, | 62832/20000=3·1416. | | | ,, | 3393/1080=3·14166. | | ,, 628 | Brahmagupta | 3=3· | | | ,, | √10=3 1/7=3·14286. | | | ,, | √10=721/228=3·16228. | | ,, 800 | M. ibn Musa | √10=? | | ,, ? | Māhavīra | 3=3· | | | ,, | √10=? | | ,, 1020 | Srīdhara | 3=3· | | | ,, | √10=? | | | ,, | 3⅙=3·1666. | | ,, 1150 | Bhāskara | 3=3· | | | ,, | 3 1/7=3·14286. | | | ,, | 3 17/120=3·14166. | | | ,, | 3 177/1250=3·1416. | | | Approximately correct value .. | 3·14159. | - [Previous: c9.25](https://indike.org/pramana/ins.science.kaye-1915.c9.25) - [Next: c9.27](https://indike.org/pramana/ins.science.kaye-1915.c9.27) - [Up: c9](https://indike.org/pramana/ins.science.kaye-1915.c9) ## Cites (6) - [Gaṇitasārasaṅgraha](https://indike.org/pramana/in.astro.ganita.patibija.pracina.ganitasarasangraha) — Mahāvīra (mathematician), Sanskrit - [Līlāvaī](https://indike.org/pramana/in.lit.kavya.prakrit.lilavai) — Kouhala, Māhārāṣṭrī Prakrit - [Brāhmasphuṭasiddhānta](https://indike.org/pramana/in.astro.siddhanta.early.brahmasphutasiddhanta) — Brahmagupta, Sanskrit - [Āryabhaṭīya](https://indike.org/pramana/in.astro.siddhanta.early.aryabhatiya) — Āryabhaṭa, Sanskrit - [Pauliśasiddhānta](https://indike.org/pramana/in.astro.siddhanta.early.paulisa) — Sanskrit - [Pāṭīgaṇita](https://indike.org/pramana/in.astro.ganita.patibija.pracina.patiganita) — Śrīdhara (mathematician), Sanskrit --- Source: [https://indike.org/pramana/ins.science.kaye-1915.c9.26](https://indike.org/pramana/ins.science.kaye-1915.c9.26) · Pramāṇa