[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Hindu Achievements in Exact Science: A Study in the History of Scientific Development](https://indike.org/pramana/ins.science.sarkar-1918) › c10.4 # Hindu Achievements in Exact Science: A Study in the History of Scientific Development c10.4 Hindu Achievements in Exact Science: A Study in the History of Scientific Development c10.4 - **Language:** English ### [c10.4](https://indike.org/pramana/ins.science.sarkar-1918.c10.4) The use of sines was unknown to the Greeks. They calculated by the help of the chords. - [Previous: c10.3](https://indike.org/pramana/ins.science.sarkar-1918.c10.3) - [Next: c10.5](https://indike.org/pramana/ins.science.sarkar-1918.c10.5) - [Up: c10](https://indike.org/pramana/ins.science.sarkar-1918.c10) --- Source: [https://indike.org/pramana/ins.science.sarkar-1918.c10.4](https://indike.org/pramana/ins.science.sarkar-1918.c10.4) · Pramāṇa