[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [A History of the Kerala School of Hindu Astronomy (in Perspective)](https://indike.org/pramana/ins.science.sarma-1972) › c8.s6.19 # A History of the Kerala School of Hindu Astronomy (in Perspective) c8.s6.19 A History of the Kerala School of Hindu Astronomy (in Perspective) c8.s6.19 - **Language:** English ### [c8.s6.19](https://indike.org/pramana/ins.science.sarma-1972.c8.s6.19) The enunciation of the value of π as a particular case of the power series for arc tan \*x\*, due to Leibnitz (1673), is explicitly: π/4=1−1/3+1/5−…… - [Previous: c8.s6.18](https://indike.org/pramana/ins.science.sarma-1972.c8.s6.18) - [Next: c8.s6.20](https://indike.org/pramana/ins.science.sarma-1972.c8.s6.20) - [Up: c8.s6](https://indike.org/pramana/ins.science.sarma-1972.c8.s6) --- Source: [https://indike.org/pramana/ins.science.sarma-1972.c8.s6.19](https://indike.org/pramana/ins.science.sarma-1972.c8.s6.19) · Pramāṇa