1 янв 870 г. до нашей эры - Shridhara

Описание:

Shridhara, a mathematician who lived in Bengal, wrote the books: Nav Shatika, Tri Shatika, and Pati Ganita. One of the books(Pati Ganita)had methods of summation of different arithmetic and geometric series, which is to become a standardized reference in later works.

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