请输入您要查询的百科知识：

　

词条 Puthumana Somayaji
释义

  1. Period of Somayaji

  2. Other works by Somayaji

  3. See also

  4. References

{{Use dmy dates|date=November 2018}}{{Use Indian English|date=November 2018}}

Puthumana Somayaji (c.1660-1740) was a 15th-century astronomer-mathematician from Kerala, India. He was born into the Puthumana or Puthuvana (in Sanskrit, Nutanagriha or Nuthanvipina) family of Sivapuram (identified as present day Thrissur). The most famous work attributed to Puthumana Somayaji is Karanapaddhati which is a comprehensive treatise on Astronomy.

Period of Somayaji

The period in which Somayaji lived is uncertain. There are several theories in this regard.[1]

  • C.M. Whish, the first westerner to write about Karanapaddhati, based on his interpretation that certain words appearing in the final verse of Karanapaddhati denote in katapayadi system the number of days in the Kaliyuga, concluded that the book was completed in 1733 CE. Whish had also claimed that the grandson of the author of the Karanapaddhati was alive and was in his seventieth year at the time of writing his paper.[2]
  • Based on reference to Puthumana Somayaji in a verse in Ganita Sucika Grantha by Govindabhatta, Raja Raja Varma placed the author of Karanapaddhati between 1375 and 1475 CE.[1][3]
  • An internal study of Karanapaddhati suggests that the work is contemporaneous with or even antedates the Tantrasangraha of Nilakantha Somayaji (1465–1545 CE).[1]
  • The date of composition of Karanapaddhati is given in the concluding verse by a chronogram which can be translated as 1732 CE. K. V. Sarma has argued for accepting this date as the most probable date of composition of Karanapaddhati.

Other works by Somayaji

  • Nyaaya Rathnam, an 8-chapter Ganitha Grantham
  • Jaathakaadesa Maargam
  • Smaartha-Praayaschitham
  • Venvaarohaashtakam
  • Panchabodham
  • Grahanaashtakam
  • Grahana Ganitham

See also

  • Indian Mathematics
  • Indian Astronomy
  • Kerala

References

1. ^1 2 {{cite journal|last=Bag|first=Amulya Kumar|date=1966|title=Trigonometrical series in the Karanapaddhati and the probable date of the text|journal=Indian Journal of History of Science|publisher=Indian National Science Academy|volume=1|issue=2|pages=98–106|url=http://www.new.dli.ernet.in/rawdataupload/upload/insa/INSA_1/20005aef_98.pdf}}{{dead link|date=January 2018 |bot=InternetArchiveBot |fix-attempted=yes }}
2. ^{{Citation | author =Charles Whish | year = 1834 | title = On the Hindu Quadrature of the circle and the infinite series of the proportion of the circumference to the diameter exhibited in the four Sastras, the Tantra Sahgraham, Yucti Bhasha, Carana Padhati and Sadratnamala | journal = Transactions of the Royal Asiatic Society of Great Britain and Ireland | publisher = Royal Asiatic Society of Great Britain and Ireland | doi=10.1017/S0950473700001221 | volume=3 | issue=3 | pages=509–523 | jstor=25581775}}
3. ^{{cite book|last=Rajaraja Varma Vadakkumkuur|title=History of Sanskrit Literature in Kerala (1–6 Volumes)|volume=1|pages=529}}
{{authority control}}{{DEFAULTSORT:Somayaji, Puthumana}}{{India-mathematician-stub}}

7 : 15th-century Indian mathematicians|Scientists from Thrissur|Year of birth uncertain|1740 deaths|Kerala school|15th-century Indian astronomers|Scholars from Kerala
随便看

　

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。

　

Copyright © 2023 OENC.NET All Rights Reserved
京ICP备2021023879号 更新时间：2024/11/13 17:44:52