Karanapaddhati of Putumana Somayaji (Sources and Studies in the History of Mathematics and Physical Sciences) free ebook download.

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Karanapaddhati of Putumana Somayaji (Sources and Studies in the History of Mathematics and Physical Sciences) free ebook download

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Mathematics

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Catalogue

Author(s):	Venketeswara Pai, K. Ramasubramanian, M.S. Sriram, M.D. Srinivas, Srinivas, M.D., Pai, Venketeswara

Date:	2019	Format:	pdf	Language:	English	ISBN/ASIN:	9811068135
Pages:		OCR:		Quality:		ISBN13:
Uploader:	alex21s	Upload Date:	2/20/2021 8:44:50 PM

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This book is an important text of the Kerala school of astronomy and mathematics, probably composed in the 16th century. In the Indian astronomical tradition, the karaa texts are essentially computational manuals, and they often display a high level of ingenuity in coming up with simplified algorithms for computing planetary longitudes and other related quantities. Karaapaddhati, however, is not a karaa text. Rather, it discusses the paddhati or the rationale for arriving at suitable algorithms that are needed while preparing a karaa text for a given epoch. Thus the work is addressed not to the almanac maker but to the manual maker.
Karaapaddhati presents the theoretical basis for the vkya system, where the true longitudes of the planet are calculated directly by making use of certain auxiliary notions such as the khaa, maala and dhruvaalong with tabulated values of changes in the true longitude over certain regular intervals which are expressed in the form ofvkyas or mnemonic phrases. The text also discusses the method of vallyupasahra,which is essentially a technique of continued fraction expansion for obtaining optimal approximations to the rates of motion of planets and their anomalies, involving ratios of smaller numbers. It also presents a new fast convergent series for  which is not mentioned in the earlier works of the Kerala school. As this is a unique text presenting the rationale behind the vkya system and the computational procedures used in the karaa texts, it would serve as a useful companion for all those interested in the history of astronomy. The authors have provided a translation of the text followed by detailed notes which explain all the computational procedures, along with their rationale, by means of diagrams and equations.

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Tags: History Mathematics Physical Sciences Somayaji Sources Studies

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	Date	Comments	Author	Del
18867	1/30/2022 11:52:54 AM	This book was posted on my blog... alex21s, maveriks, gestalt, stirkout, topron, eternal, pleeeeeeease stop deleting my books & posting them in your behalf This was my link: https://novafile.com/file/21kiensgssh6	tvladb77	X

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