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Topic: Jyesthadeva

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	Jyesthadeva (Site not responding. Last check: 2007-10-20)
		Jyesthadeva lived on the southwest coast of India in the district of Kerala.
		Jyesthadeva wrote a famous text Yuktibhasa which he wrote in Malayalam, the regional language of Kerala.
		Other mathematical results presented by Jyesthadeva include topics studied by earlier Indian mathematicians such as integer solutions of systems of first degree equation solved by the kuttaka method, and rules of finding the sines and the cosines of the sum and difference of two angles.
	www-gap.dcs.st-and.ac.uk /~history/Mathematicians/Jyesthadeva.html (643 words)

	Madhava (Site not responding. Last check: 2007-10-20)
		Jyesthadeva wrote Yukti-Bhasa in Malayalam, the regional language of Kerala, around 1550.
		In [9] Gupta gives a translation of the text and this is also given in [2] and a number of other sources.
		Jyesthadeva in Yukti-Bhasa gave an explanation of how Madhava found his series expansions around 1400 which are equivalent to these modern versions rediscovered by Newton around 1676.
	www.gap-system.org /~history/Mathematicians/Madhava.html (803 words)

	History of Indian Astronomy (Site not responding. Last check: 2007-10-20)
		The eight chapters deal with calculations for the longitudes of the Sun, Moon, and the planets, eclipses, gnomon shadow (the shadow on a sundial cast by a stationary arm), helical visibility, planetary conjunctions and the rising of the Moon.
		Vakyas are the mnemonics used by both systems to generate different astronomical tables.
		c) Yuktibhasa by Jyesthadeva on astronomy and mathematics.
	www.stormpages.com /swadhwa/hofa/ia.html (1604 words)

	Vedic Mathematics - Above Top Secret Conspiracy Community
		Nilkantha (15th C, Tirur, Kerala) extended and elaborated upon the results of Madhava while Jyesthadeva (16th C, Kerala) provided detailed proofs of the theorems and derivations of the rules contained in the works of Madhava and Nilkantha.
		It is also notable that Jyesthadeva's Yuktibhasa which contained commentaries on Nilkantha's Tantrasamgraha included elaborations on planetary theory later adopted by Tycho Brahe, and mathematics that anticipated work by later Europeans.
		Chitrabhanu (16th C, Kerala) gave integer solutions to twenty-one types of systems of two algebraic equations, using both algebraic and geometric methods in developing his results.
	www.abovetopsecret.com /forum/thread88949/pg1 (1795 words)

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