1. Roomen Adriaan van Roomen. Born 29 Sept 1561 Adriaan van Roomen is oftenknown by his Latin name Adrianus Romanus. After studying at the http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Roomen.html

Adriaan van Roomen Born: 29 Sept 1561 in Louvain, Belgium Died: 4 May 1615 in Mainz, Germany Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Adriaan van Roomen is often known by his Latin name Adrianus Romanus. After studying at the Jesuit College in Cologne, Roomen studied medicine at Louvain. He then spent some time in Italy, particularly with Clavius in Rome in 1585. One of Roomen's most impressive results was finding p to 16 decimal places. He did this in 1593 using 2 sided polygons. Roomen's interest in p was almost certainly as a result of his friendship with Ludolph van Ceulen Roomen proposed a problem which involved solving an equation of degree 45. The problem was solved by who realised that there was an underlying trigonometric relation. After this a friendship grew up between the two men. proposed the problem of drawing a circle to touch 3 given circles to Roomen (the Apollonian Problem) and Roomen solved it using hyperbolas , publishing the result in 1596. Roomen worked on trigonometry and the calculation of chords in a circle. In 1596

2. Adriaan Van Roomen - Wikipedia, The Free Encyclopedia Adriaan van Roomen. Adriaan van Roomen (29 September 1561 4 May 1615),also known as Adrianus Romanus, was a Belgian mathematician. http://en.wikipedia.org/wiki/Adriaan_van_Roomen

Adriaan van Roomen From Wikipedia, the free encyclopedia. Adriaan van Roomen 29 September 4 May ), also known as Adrianus Romanus , was a Belgian mathematician . He was born in Louvain , where he became professor, but then travelled extensively in Europe. He worked in algebra trigonometry and geometry ; and on the decimal expansion edit External link MacTutor biography http://www-history.mcs.st-andrews.ac.uk/history/Mathematicians/Roomen.html Views Article Discussion Edit History Personal tools Log in Navigation Main Page Community portal Current events Recent changes ... Donations Search Toolbox What links here Related changes Special pages This page was last modified 16:14, 1 May 2004. All text is available under the terms of the GNU Free Documentation License (see for details). About Wikipedia

3. Roomen Adriaan van Roomen. Born 29 Mainz, Germany. Show birthplace location.Adriaan van Roomen is often known by his Latin name Adrianus Romanus. http://www.geocities.com/scirevolution/roomen.html

Adriaan van Roomen Born: 29 Sept 1561 in Louvain, Belgium Died: 4 May 1615 in Mainz, Germany Show birthplace location Adriaan van Roomen is often known by his Latin name Adrianus Romanus. After studying at the Jesuit College in Cologne, Roomen studied medicine at Louvain. He then spent some time in Italy, particularly with Clavius in Rome in 1585. Roomen was professor of mathematics and medicine at Louvain from 1586 to 1592, he then went to Würzburg where again he was professor of medicine. He was also "Mathematician to the Chapter" in Würzburg. From 1603 to 1610 he lived frequently in both Louvain and Würzburg. He was ordained a priest in 1604. After 1610 he tutored mathematics in Poland. One of Roomen's most impressive results was finding p to 16 decimal places. He did this in 1593 using 2 sided polygons. Roomen's interest in p was almost certainly as a result of his friendship with Ludolph van Ceulen Roomen proposed a problem which involved solving an equation of degree 45. The problem was solved by Viète who realised that there was an underlying trigonometric relation. After this a friendship grew up between the two men.

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5. Biography-center - Letter V bio_uk.asp?PAR_I_ID=87831. van roomen, adriaan. wwwhistory.mcs.st-and.ac.uk/~history/ Mathematicians/roomen.html. van Schooten, Frans http://www.biography-center.com/v.html

Visit a random biography ! Any language Arabic Bulgarian Catalan Chinese (Simplified) Chinese (Traditional) Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hebrew Hungarian Icelandic Indonesian Italian Japanese Korean Latvian Lithuanian Norwegian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swedish Turkish V 205 biographies Vaca, Alva Nuñez Cabeza de www.pbs.org/weta/thewest/people/a_c/cabezadevaca.htm Vaca, Alva Nuñez Cabeza de www.newadvent.org/cathen/03126c.htm Vacca, Giovanni www-history.mcs.st-and.ac.uk/~history/Mathematicians/Vacca.html Vaga, Perino del www.getty.edu/art/collections/bio/a952-1.html Vailati, Giovanni www-history.mcs.st-and.ac.uk/~history/Mathematicians/Vailati.html Val, Patrick du www-history.mcs.st-and.ac.uk/~history/Mathematicians/Du_Val.html Vala, Katri www.kirjasto.sci.fi/kvala.htm VALEJO, Christiane www.christiane-valejo.com/Biography.htm Valentin, www.kirjasto.sci.fi/valentin.htm Valentin, Moise www.kfki.hu/~arthp/bio/v/valentin/biograph.html Valentine, www.knight.org/advent/cathen/15254b.htm Valerio, Luca

6. Famous Mathematicians With A V Luca Valerio. Howard van Amringe. Ludolph van Ceulen. David van Dantzig. Bartel van der Hendrik van Heuraet. Philip van Lansberge. adriaan van roomen. Frans van Schooten. Edward van Vleck http://www.famousmathematician.com/az/mathematician_V.htm

Mathematicians - V Giovanni Vacca Giovanni Vailati Patrick du Val Luca Valerio Howard van Amringe Ludolph van Ceulen David van Dantzig Bartel van der Waerden Hendrik van Heuraet Philip van Lansberge Adriaan van Roomen Frans van Schooten Edward van Vleck Alexandre Vandermonde Harry Vandiver Varahamihira Varahamihira Pierre Varignon Mikhail Vashchenko-Z Oswald Veblen Jurij von Vega Argelia Velez-Rodriguez John Venn Pierre Verhulst Pierre Vernier Giuseppe Veronese Urbain Le Verrier Ernest Vessiot François Viete Vijayanandi Gregorius Saint-Vincent Leonardo da Vinci Ivan Vinogradov Giuseppe Vitali Vincenzo Viviani Adriaan Vlacq Edward van Vleck Vito Volterra Walther von Dyck Helge von Koch Gottfried von Leibniz Carl von Lindemann Hilda Geiringer von Mises Richard von Mises John von Neumann Johann von Segner Philipp von Seidel Georg von Vega Gheorghe Vranceanu Send mail to webmaster@famousmathematician.com

7. Mathematicians In Richard S. Westfall's Archive Ricci, Michelangelo; Richer, Jean; Ries, Adam; Roberval, Gilles; Rolle,Michel; roomen, adriaan van; Rudolff, Christoff; Saccheri, Giovanni; http://www-gap.dcs.st-and.ac.uk/~history/External/Westfall_list.html

Mathematicians in Richard S. Westfall's archive Richard Westfall's archive contains concise biographical details of more than 640 members of the Scientific Community of the 16th and 17th Centuries. The mathematicians who have biographies in our archive are listed below. You can search the whole archive in several ways or can click on a name below. Angeli, Stephano Arbuthnot, John Arnauld, Antoine Bachet, Claude ... Search Suggestions JOC/EFR January 2000 The URL of this page is: School of Mathematics and Statistics University of St Andrews, Scotland http://www-history.mcs.st-andrews.ac.uk/history/External/Westfall_list.html

8. Roomen Biography of adriaan van roomen (15611615) adriaan van roomen. Born 29 Sept 1561 in Louvain, Belgium adriaan van roomen is often known by his Latin name Adrianus Romanus. After studying at http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Roomen.html

Adriaan van Roomen Born: 29 Sept 1561 in Louvain, Belgium Died: 4 May 1615 in Mainz, Germany Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Adriaan van Roomen is often known by his Latin name Adrianus Romanus. After studying at the Jesuit College in Cologne, Roomen studied medicine at Louvain. He then spent some time in Italy, particularly with Clavius in Rome in 1585. One of Roomen's most impressive results was finding p to 16 decimal places. He did this in 1593 using 2 sided polygons. Roomen's interest in p was almost certainly as a result of his friendship with Ludolph van Ceulen Roomen proposed a problem which involved solving an equation of degree 45. The problem was solved by who realised that there was an underlying trigonometric relation. After this a friendship grew up between the two men. proposed the problem of drawing a circle to touch 3 given circles to Roomen (the Apollonian Problem) and Roomen solved it using hyperbolas , publishing the result in 1596. Roomen worked on trigonometry and the calculation of chords in a circle. In 1596

9. [HM] Quintics And Adriaan Van Roomen By Dennis Almeida HM Quintics and adriaan van roomen by Dennis Almeida. reply to thismessage post a message on a new topic Back to historia Subject http://mathforum.org/epigone/historia/jeudirnoa

[HM] Quintics and Adriaan van Roomen by Dennis Almeida reply to this message post a message on a new topic Back to historia Subject: [HM] Quintics and Adriaan van Roomen Author: aryabhata@btopenworld.com Date: The Math Forum

10. RDC Pompton NJ Baptisms Suydam, Annatje. Pieter roomen; Annatje roomen. Berry. Johannis. Dec 17, 1780 Jan 5, 1746. William. Lea. adriaan van Houten; Angnietje van Houten http://freepages.genealogy.rootsweb.com/~vreelandproject/rdcpompnjbapt.html

OAS_AD('Top'); Surname Child Born Baptised Father Mother Witnesses Jacobus Mar 9, 1780 Apr 26, 1780 The French Capt. Jones, Sara no witnesses listed ? [Vreland] Enoch Vreland Oct 29, 1753 Jan 27, 1754 none listed Hennion, Priscilla Annaatje Hennion; Daniel Hennion [Colfax] Jack Oct 29, 1831 Adult colored man of Dr. Colfax [Colfax] John Oct 31, 1831 May 27, 1832 Jane Colored woman of G. W. Colfax [Colfax] Sarah Jul 16, 1829 Sep 5, 1830 Jane Colored woman of Gen Colfax [Kirris?] John Feb 16, 1761 Jul 31 1761 Cirris, Margrit Guliaam Bertholf Ackerman child Jan 22, 1792 Abm. none listed no witnesses listed Ackerman David Aug 14, 1785 Gelyn [Mandeville], Tryntje Hendrik Mandeviel; Lena Mandeviel Ackerman Michael Clark Sep 17, 1808 Isaac Clark, Maria no witnesses listed Ackerman Rachel Sep 13, 1793 Gelyn Mandeville, Catrian Martha Berry Ackerson Sarah Voorhes Jul 29, 1842 Jun 24, 1843 Andrew Ryerson, Margaret no witnesses listed Adams Cathalyntje Jan 2, 1786 John Engeltje no witnesses listed Adams Isaac Apr 27, 1784 John Engeltje no witnesses listed Adams James Charles Oct 17, 1794 William Handyside, Anny

11. September 2003 Hahn. 28 Kurt Otto Friedrichs, 29 adriaan van roomen, 30 Ernst Hellinger,A quotation for September Hans Reichenbach (1891 1953) http://mathforum.org/~judyann/calendar/September2003.html

September 2003 Can you identify the pictured Mathematicians? Sunday Monday Tuesday Wednesday Thursday Friday Saturday William Stanley Jevons Rene Thom Solomon Lefschetz Ernst Heinrich Bruns Jean Etienne Montucla Dmitry Grave Jean Claude Bouquet Marin Mersenne Frank Morley Charles Sanders Peirce Franz Ernst Neumann Haskell Brooks Curry Constantin Caratheodory Ivan Matveevich Venogradov Paul Pierre Levy Francesco Maurolio Bernhard Riemann Adrien-Marie Legendre James Waddell Alexander Frank Nelson Cole Juliusz Pawel Schauder Charles Francois Sturm David van Dantzig Max Nother Stefan Mazurkiewicz Hans Reichenbach Hans Hahn Kurt Otto Friedrichs Adriaan van Roomen Ernst Hellinger A quotation for September: Hans Reichenbach (1891 - 1953) If error is corrected whenever it is recognized, the path of error is the path of truth. This calendar is available in a printable PDF format.

12. Ask Jeeves For Kids! Sluze, Ren e de. Schooten, Frans van. Schickard, Wilhelm. Saurin, Joseph Rudolff, Christoff. roomen, adriaan van. Rolle, Michel. Roberval, Gilles http://www.ajkids.com/kidsaskjeeves.asp?ask=Galileo&qSource=0&origin=0&a

13. Biografia De Van Roomen, Adriaan Translate this page van roomen, adriaan. (Lovaina, 1561-Maguncia, 1615) Matemático flamenco.Realizó sus estudios en Alemania e Italia. Profesor en http://www.biografiasyvidas.com/biografia/v/van_roomen.htm

Inicio Buscador Utilidades Recomendar sitio Enlaces Van Roomen, Adriaan (Lovaina, 1561-Maguncia, 1615) Matemático flamenco. Realizó sus estudios en Alemania e Italia. Profesor en Lovaina y Wurzburgo, en 1595 fue nombrado astrónomo del rey de Polonia. Sus trabajos versaron principalmente sobre geometría y trigonometría plana y esférica. Propuso y dio solución a una ecuación algebraica de grado 45. Entre sus obras destacan Ideae mathematicae (1593) y Canon triangulorum sphericorum Inicio Buscador Recomendar sitio

14. Índice Alfabético - V Cornelis, llamado Sátiro van Ravesteyn, Jan Anthonisz van Rijnberk, Gerard Abrahamvan Roey, Joseph Ernst van Roome, Jan van roomen, adriaan van Roymerswaele http://www.biografiasyvidas.com/biografia/v/index0005.htm

Inicio Buscador Utilidades Recomendar sitio Enlaces V Van Gulik, Robert Hans Van Halen, Juan, conde de Peracamps Van Hasselt, Willem Van Heemskerck, Egbert ... Van Somer o Van Someren, Paulus Inicio Buscador Recomendar sitio

15. VIETA (OR VIETE). FRANCOIS In that year adriaan van roomen gave out as a problem to all mathematicians an equation of the yet being mastered, and adriaan van roomen gave a solution by the http://www.1911encyclopedia.org/V/VI/VIETA_OR_VIETE_FRANCOIS.htm

VIETA (OR VIETE). FRANCOIS In addition to this the discussions announced in the opening speech, regarding measures for the reformation of the Church and the protection of her liberties, took place; and a part of the Constitutions found in the Clementinum, published in 1317 by John XXII., were probably enacted by the council. Still it is impossible to say with certainty what decrees were actually passed at Vienne. Additional decisions were necessitated by the violent disputes which raged within the Franciscan order as to the observance of the rules of St Francis of Assisi, and by the multitude of subordinate questions arising from this. Resolutions were also adopted on the Beguines and their mode of life (see BEGUINES), the control of the hospitals, the institution of instructors in Hebrew, Arabic and Chaldaic at the universities, and on numerous details of ecclesiastical discipline and law. See Mansi, Collectio Conciliorum, vol. xxv.; Hefele, Concilien-geschichte, vol. vi. pp. 532-54- See Roger Marx, L'Image (1898); Beraldi, La Gravure au igf siecle. VIERZON, a town of central France, in the department of Cher, 20 m. N.W. of Bourges by rail. The Cher and the Yevre unite at the foot of the hill on which lie Vierzon-Ville (pop. (1906) town, 11,812) and Vierzon-Village (pop. town, 2026; commune, 9710); Vierzon-Bourgneuf (pop. town, 1482) is on the left bank of the Cher. The town has a port on the canal of Berry and is an important junction on the Orleans railway; there are several large manufactories for the production of agricultural machines, also foundries, porcelain, brick and tile works and glass works. A technical- school of mechanics and a branch of the Bank of France are among the institutions of the town.

16. Brozek, Jan [Broscius, Brocki, Broski, Broszcz, Brzoski, Zbroek] came into contact with the Belgian mathematician adriaan van roomen, who had a significant influence on his later Copyright ©1995 Albert van Helden. , , , , , http://es.rice.edu/ES/humsoc/Galileo/Catalog/Files/brozek.html

Catalog of the Scientific Community Brozek, Jan [Broscius, Brocki, Broski, Broszcz, Brzoski, Zbroek] Note: the creators of the Galileo Project and this catalogue cannot answer email on genealogical questions. 1. Dates Born: in a small town (Kurzelow) in the province of Sieradz (central Poland), 1 Nov. 1585 Died: Bronowice, 21 Nov. 1652 Dateinfo: Dates Certain Lifespan: 2. Father Occupation: Gentry Jakub (1542-1608), an educated landowner with a modest holding by Polish standards. This is what I call gentry. Neither wealthy nor poor; I guess affluent is the word. 3. Nationality Birth: Polish Career: Polish Death: Polish 4. Education Schooling: Krakow, M.D. Padua Brozek began his education by learning the art of writing and the principles of geometry from his father. He went to primary school in Kurzelow and then to the University of Krakow, where he passed his baccalaureate in March 1605. In 1618 travelled to Torun, Gdansk, Warmia and Ducal Prussia to gather memoirs and manuscripts of Copernicus, with the intention of writing his biography. From 1620 to 1624 Brozek studied medicine in Padua, received M.D. in 1624.

17. Full Alphabetical Index Translate this page 148*) Robinson, Julia Bowman (407*) Rocard, Yves-André (341) Roche, Estienne deLa (275) Rohn, Karl (117) Rolle, Michel (232) roomen, adriaan van (419) Rosanes http://www.geocities.com/Heartland/Plains/4142/matematici.html

18. The Math Forum: Historia-Matematica Archive HM ICM1970, Nice, Prof. van der Waerden's Talk. 24 Dec 2003 2 HM Quintics and adriaan van roomen. 9 Jun 2003 1 http://mathforum.com/epigone/historia_matematica/all

Archive: Historia-Matematica all topics Subscribe/More Information Search this discussion Back to all discussions View all messages View recent messages View by month: June 1998 July 1998 August 1998 September 1998 October 1998 November 1998 December 1998 January 1999 February 1999 March 1999 April 1999 May 1999 June 1999 July 1999 August 1999 September 1999 October 1999 November 1999 December 1999 January 2000 February 2000 March 2000 April 2000 May 2000 June 2000 July 2000 August 2000 September 2000 October 2000 November 2000 December 2000 January 2001 February 2001 March 2001 April 2001 May 2001 June 2001 July 2001 August 2001 September 2001 October 2001 November 2001 December 2001 January 2002 February 2002 March 2002 April 2002 May 2002 June 2002 July 2002 August 2002 September 2002 October 2002 November 2002 December 2002 January 2003 February 2003 March 2003 April 2003 May 2003 June 2003 July 2003 August 2003 September 2003 October 2003 November 2003 December 2003 January 2004 February 2004 March 2004 April 2004 May 2004 Post a message on a new topic 31 May 2004 1 [HM] Second thoughts: What Descartes really meant 31 May 2004 2 [HM] on homogeneous forms in two variables 31 May 2004 1 [HM] An algebraic claim of Descartes: true or false?

19. François Vieta Evidence of his character is found in the fact that he entertained as a guest, fora whole month, a scientific adversary, adriaan van roomen, and then paid the http://www.fact-index.com/f/fr/francois_vieta.html

Main Page See live article Alphabetical index François Vieta François Vieta (or Viète seigneur de la Bigotière ), generally known as Franciscus Vieta , was a French mathematician He was born at Fontenay-le-Comte, in Poitou , and is believed to have been brought up as a Roman Catholic ; but there is no doubt that he was a Huguenot for several years. On the completion of his studies in law at Poitiers Vieta began his career as an advocate in his native town. He left in about 1567, and later became a councillor of the parlement of Brittany , at Rennes . The religious troubles drove him out, and Henri, duc de Rohan , a well-known leader of the Huguenots, took him under his special protection, recommending him in 1580 as a "maître des requetes" (master of requests). Henry of Navarre , at Rohan's instigation, addressed two letters to King Henry III of France on March 3 and April 26 , in an attempt to obtain Vieta's restoration to his former office; he failed. After Henry of Navarre became King of France, Vieta was given the position of councillor of the parlement at Tours ). He afterwards became a royal privy councillor, and remained so till his death, which took place suddenly at

20. CIRCLE Passing over adriaan van roomen. ( Adrianus Romanus) of Louvain, who published the value of the ratio correct to 1593) 2 we come to the notable computer Ludolph van Ceulen (d http://www.1911encyclopedia.org/C/CI/CIRCLE.htm

CIRCLE CIRCLE (from the Lat. circulus, the diminutive of circus, a ring; the cognate Gr. word is KtpKos, generally used in the form spLKos), a plane curve definable as the locus of a point which moves so that its distance from a fixed point is constant. meter, the segment if the chord be a dia Iii is termed a semi circle. The figure included by two radii p and an arc is a FIG. I. FIG. 2. sector, e.g. ECF (fig. 2). Concentric circles are, as the name obviously shows, circles having the same centre; the figure enclosed by the circumferences of two concentric circles is FIG. 3. FIG, 4. an annulus (fig. 3), and of two non-con centric circles a lune, the shaded portions in fig. 4; the clear figure is sometimes termed a lens. Analytical Geometry of the Circle. In the article GEOMETRY: Analytical, it is shown that the general equation to a circle in rectangular Cartesian co-ordinates is x2+y2+2gx+2fyc=o, i.e. in the general equation Cattesian of the second degree the co-efficients of xi and y1 are co-ordinates, equal, and of xy zero. The co-ordinates of its centre are gte, f/c; and its radius is (g2~~f~f2_c)+. The equations to the chord, tangent and normal are readily derived by the ordinary methods. Consider the two circles: x+y +2gx+2fy+c =0, x2+y2+2gx+2fy+C =0.

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