
	Where results make sense

Topic: Pietro Cataldi

Related Topics

Arthur Cayley

In the News (Sat 28 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	The Galileo Project
		Cataldi is particularly remembered for the Trattato del modo brevissimo di trovar la radice quadra delli numeri, published in 1613.
		Cataldi was to teach both mathematics and astronomy in Bologna.
		Cataldi tried to organize an academy for mathematics in Bologna, but it ran into political opposition (which I find difficult to imagine) and lapsed almost immediately.
	galileo.rice.edu /Catalog/NewFiles/cataldi.html (663 words)

	Pietro Cataldi - TheBestLinks.com - Pietro Antonio Cataldi, April 15, February 11, Mathematician, ... (Site not responding. Last check: 2007-11-02)
		Pietro Cataldi - TheBestLinks.com - Pietro Antonio Cataldi, April 15, February 11, Mathematician,...
		Pietro Antonio Cataldi, Pietro Cataldi, April 15, February 11, Mathematician...
		Pietro Antonio Cataldi (April 15, 1552 - February 11, 1626) was a mathematician.
	www.thebestlinks.com /Pietro_Antonio_Cataldi.html (113 words)

	Cataldi (Site not responding. Last check: 2007-11-02)
		Pietro Cataldi was educated in Bologna although he does not seem to have attended the university there, rather he began teaching mathematics at the age of seventeen.
		In 1584 Cataldi returned to Bologna were he taught mathematics and astronomy at the Studio di Bologna until his death.
		Cataldi wrote around 30 books on mathematics, and some on other topics.
	www-groups.dcs.st-and.ac.uk /~history/Mathematicians/Cataldi.html (320 words)

	Mengoli (Site not responding. Last check: 2007-11-02)
		Pietro Mengoli was taught mathematics by Cavalieri at the University of Bologna before he himself taught at Bologna from 1648.
		While he taught he studied for a doctorate in philosophy which was awarded by the University of Bologna in 1650.
		analyse a little-known aspect of Pietro Mengoli's mathematical activity: the difficulties he faced in trying to solve some problems in Diophantine analysis suggested by J Ozanam.
	www-history.mcs.st-and.ac.uk /~history/Mathematicians/Mengoli.html (860 words)

	The Cataldi sisters - Mucri - Criminology Museum
		On 20 October 1945, Lidia and Franca Cataldi, aged 22 and 17 respectively, killed Angela Barruca and her 3-year-old son Gianni.
		Married to shopkeeper Pietro Belli and mother of three children, Angela Barruca was from Colleferro, the same town as the Cataldi sisters who had come to Rome after Colleferro was bombed.
		A violent argument ensued, and Angela was pinned down on the sofa, while her son Gianni was locked in the bathroom.
	www.museocriminologico.it /cataldi_uk.htm (228 words)

	CATALDI, Pietro Antonio, Trattato del modo brevissimo di trovare la radice quadra delli numeri, et regole da ... (Site not responding. Last check: 2007-11-02)
		CATALDI, Pietro Antonio, Trattato del modo brevissimo di trovare la radice quadra delli numeri, et regole da approssimarsi di coninuo al vero nelle radici de' numeri non quadrati, con le cause, & inuentioni loro, et anco il modo di pigliarne la radice cuba...
		"In the history of mathematics, Cataldi is particularly remembered for his Trattato, finished in 1597 and published in 1613.
		Cataldi (1552-1626) was educated in Bologna although he does not seem to have attended the university there.
	www.polybiblio.com /watbooks/2561.html (705 words)

	CATALDI, Pietro Antonio, Operetta delle linee rette equidistanti, et non equidistanti. [with:] Aggiunta... (Site not responding. Last check: 2007-11-02)
		CATALDI, Pietro Antonio, Operetta delle linee rette equidistanti, et non equidistanti.
		'Cataldi also has a place in the history of the criticism of Euclid's fifth postulate, which led to construction of a non-Euclidean geometry.
		Cataldi published the Aggiunta to this work the following year, doubling the size of his work.
	www.polybiblio.com /watbooks/2542.html (362 words)

	Mersenne Primes: History, Theorems and Lists
		Pietro Cataldi had correctly verified that 2^17-1 and 2^19-1 were both prime, but then incorrectly stated 2^n-1 was also prime for 23, 29, 31 and 37.
		Euler in 1738 showed Cataldi was also wrong about 29.
		Sometime later Euler showed Cataldi's assertion about 31 was correct.
	cage.rug.ac.be /~hvernaev/mersenne.shtml (1397 words)

	[No title]
		So we give credit to our first record holder with some doubt: by 1588 Pietro Cataldi had correctly verified that 217-1 = 131071 and 219-1 = 524287 are both prime.
		But Cataldi also had incorrectly stated 2n-1 was also prime for each of 23, 29, 31 and 37.
		He then quickly showed Cataldi was wrong about 23 (which has a factor with k=1) and 37 (factor at k=6).
	w3.impa.br /~gugu/mersenne/by_year.txt (1106 words)

	The Largest Known prime by Year: A Brief History
		This is interesting because Cataldi made his discoveries by constructing what Shanks calls "the first extensive table of primes--up to 750" [Shanks78 p14].
		He then quickly showed Cataldi was wrong about 23 (which has the factor 47 with k=1) and 37 (factor 223 at k=3).
		Note that Cataldi's errors were shown with small factors found in Cataldi's own table of primes, and none took more than two trial divisions!
	primes.utm.edu /notes/by_year.html (1279 words)

	cataldi - OneLook Dictionary Search (Site not responding. Last check: 2007-11-02)
		We found 2 dictionaries with English definitions that include the word cataldi:
		Tip: Click on the first link on a line below to go directly to a page where "cataldi" is defined.
		Phrases that include cataldi: coralina cataldi tassoni, pietro cataldi
	www.onelook.com /?w=cataldi (88 words)

	Mersenne Primes: What are Mersenne Primes (Site not responding. Last check: 2007-11-02)
		By 1603 Pietro Cataldi had correctly verified that 2
		In 1640 Fermat showed Cataldi was wrong about 23 and 37 and Euler in 1738 showed Cataldi was also wrong about 29.
		In 1640 Marin Mersenne wrote Cognitata Physico-Mathematica in which he stated that Mn is prime for n = 2, 3, 5, 7, 13, 17, 19, 31, 67, 127, and 257 and for no other primes n for
	www.bath.ac.uk /~ma3yp/mersenneprimes/mersenneprimes.html (495 words)

	Continued Fractions - History
		c.1530) and Pietro Cataldi (1548-1626) also contributed to this field, albeit providing more examples.
		Cataldi did the same for the square root of 18.
		Besides these examples, however, neither mathematician investigated the properties of continued fractions.
	archives.math.utk.edu /articles/atuyl/confrac/history.html (933 words)

	General Information (Site not responding. Last check: 2007-11-02)
		Rafael Bombelli (1526-1572), (Bortolotti discovered and published the 4th and 5th volumes of his work "Algebra"), Pietro Antonio Cataldi (1548-1626),
		Pietro Mengoli (1625-1676) and other important mathematicians of the XVI, XVII and XVIII centuries.
		The library owns also an interesting collection of books on Architecture (700 volumes approx.), which originally was part of the School of Design and Architecture.
	www.dm.unibo.it /libradm/document/biblioteca_sf/geninf_lib.html (207 words)

Try your search on: Qwika (all wikis)