41. Steiner, Jakob steiner, jakob (17961863) He discovered the steiner surface (also calledthe Roman surface), which has a double infinity of conic sections on it, http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/S/Steiner/1.html

Steiner, Jakob Swiss mathematician, the founder of modern synthetic, or projective, geometry. He discovered the Steiner surface (also called the Roman surface), which has a double infinity of conic sections on it, and the Steiner theorem. Steiner was born at Utzenstorf, near Bern, and did not learn to read and write until the age of 14. After training as a teacher in Germany, he was admitted to the University of Berlin 1822. By 1825 he was teaching at the university and in 1834 a professorship of geometry was created for him, which he held for the rest of his life. His first published paper, which appeared in 1826, contained his discovery of the geometrical transformation known as inversion geometry. The Steiner theorem states that two pencils (collections of geometric objects) by which a conic is projected from two of its points are projectively related. In the Steiner-Poncelet theorem, an extension of work done by French mathematician Jean Poncelet in 1822, Steiner proved that any Euclidean figure could be generated using only a straight rule if the plane of construction had a circle with its centre marked drawn on it already.

42. STEINER POINT The steiner point of a triangle ABC is constructed as follows First, jakob steiner Triangle Centers Clark Kimberling Home Page. http://faculty.evansville.edu/ck6/tcenters/class/steiner.html

STEINER POINT The Steiner point of a triangle ABC is constructed as follows: First, let O be the circumcenter and K the symmedian point of ABC. The circle having segment OK as diameter is the Brocard circle . The line through O perpendicular to line BC passes through the Brocard circle in another point, a; similarly, obtain points b and c. The triangle abc is the 1st Brocard triangle. Now, construct the line through A parallel to line bc, the line through B parallel to line ca, and the line through C parallel to line ab. These three lines concur in the Steiner point, S. Steiner described this point in a different way in 1826. Forty years later, in J. Neuberg, "Sur le point de Steiner," 1886, p. 29, the point was constructed as described here and was given Steiner's name. Steiner also first described the ellipse passing through the vertices A, B, C and having the centroid of triangle ABC as its center. This Steiner ellipse is the ellipse of least area that passes through these points. It has in common with the circumcircle of ABC not only the points A, B, C but also the Steiner point. Homogeneous trilinear for the Steiner point are bc/(b^2 - c^2) : ca/(c^2 - a^2) : ab/(a^2 - b^2)

43. AIP Niels Bohr Library steiner, jakob, 17961863. Subjects. Geometry, Projective. von Jacob steiner Hrsg. von AJ von Oettingen by steiner, jakob, 1796-1863. http://www.aip.org/history/catalog/19391.html

If you are not immediately redirected, please click here My List - Help Browse Books Archival Resources Archival Finding Aids Photos Browse FAQs Past Searches History Home Search: Author Subject Title Journal/Newspaper Title Series Computer File (Software) Title Video Title Refine Search AIP Niels Bohr Library Item Information Holdings More by this author Steiner, Jakob, 1796-1863. Subjects Geometry, Projective. Browse Catalog by author: Steiner, Jakob, 1796-1863. by title: Systematische entwic... MARC Display by Steiner, Jakob, 1796-1863. Leipzig : W. Engelmann, 1896. 1896. Call Number: N8 STE Description: 2 v., 4 folded plates : ill. ; 20 cm. Notes: First edition, Berlin, 1882. Added Author: Oettingen, A. v. (Arthur), 1836-1920. Series: Ostwalds Klassiker der exakten Wissenschaften ; nr. 82-83 Copy/Holding information Location Collection Call No. Status Niels Bohr Library Books General Collection N8 STE In NBL Format: HTML Plain text Delimited Subject: Email to: Horizon Information Portal 3.0 Dynix

44. AIP Niels Bohr Library steiner, jakob, 17961863. Subjects. Geometry, Projective. Browse Catalog.by author. steiner, jakob, 1796-1863. by title. Die geometrischen co http://www.aip.org/history/catalog/19390.html

If you are not immediately redirected, please click here My List - Help Browse Books Archival Resources Archival Finding Aids Photos Browse FAQs Past Searches History Home Search: Author Subject Title Journal/Newspaper Title Series Computer File (Software) Title Video Title Refine Search AIP Niels Bohr Library Item Information Holdings More by this author Steiner, Jakob, 1796-1863. Subjects Geometry, Projective. Browse Catalog by author: Steiner, Jakob, 1796-1863. by title: Die geometrischen co... MARC Display by Steiner, Jakob, 1796-1863. Leipzig : W. Engelmann, 1895. 1895. Call Number: N8 STE Description: 84 p., 1 leaf : ill. ; 20 cm. Notes: First published, Berlin, 1833. Added Author: Oettingen, A. v. (Arthur), 1836-1920. Series: Ostwalds Klassiker der exakten Wissenschaften ; nr. 60 Copy/Holding information Location Collection Call No. Status Niels Bohr Library Books General Collection N8 STE In NBL Format: HTML Plain text Delimited Subject: Email to: Horizon Information Portal 3.0 Dynix

45. Poncelet-Steiner Theorem - Wikipedia, The Free Encyclopedia by Jean Victor Poncelet in 1822, and proven by jakob steiner in 1833. Jacob steiner s theorem (It is impossible to find the center of a given circle http://en.wikipedia.org/wiki/Poncelet-Steiner_theorem

Wikimedia needs your help in the final days of its fund drive. See our fundraising page The Red Cross and other charities also need your help. Poncelet-Steiner theorem From Wikipedia, the free encyclopedia. In geometry , the Poncelet-Steiner theorem on ruler-and-compass constructions states that whatever can be constructed by straightedge with compass , can be constructed by straightedge alone, if you are given a single circle and the location of its centre. This result is the best possible: a straightedge alone, without being given a circle, is not sufficient. (A straightedge alone cannot construct square roots.) The result was conjectured by Jean Victor Poncelet in , and proven by Jakob Steiner in See also: Mohr-Mascheroni theorem edit External link Jacob Steiner's theorem (It is impossible to find the center of a given circle with the straightedge alone) geometry-related article is a stub . You can help Wikipedia by expanding it Retrieved from " http://en.wikipedia.org/wiki/Poncelet-Steiner_theorem Categories Geometry stubs Geometry Views Article Discussion Edit this page History Personal tools Create account / log in Navigation Main Page Community portal Current events Recent changes ... Donations Search Toolbox What links here Related changes Upload file Special pages ... Permanent link This page was last modified 19:36, 3 September 2005.

46. Bibliography steiner, jakob, 17961863, Gesammelte Werke / hrsg. auf Veranlassung der K. steiner, jakob, 1796-1863, Briefwechsel zwischen jakob steiner und Ludwig http://www.library.cornell.edu/math/bibliography/display.cgi?start=S&

47. SAPERE.it - Steiner, O Stainer, Jakob consultare una voce enciclopedica piu ricca. 902 caratteri. 0 media associati http://www.sapere.it/gr/ArticleViewServlet?tid=1160967&rid=1160967&from=ArticleV

48. Steiner, Jakob steiner, jakob. (1796 1863). Nemecký matematik, je považován za jednu z nejvetšíchosobností moderní geometrie. Zabýval se teorií projekcí. http://www.aldebaran.cz/famous/people/Steiner_Jakob.html

Steiner, Jakob Nìmecký matematik, je považován za jednu z nejvìtších osobností moderní geometrie. Zabýval se teorií projekcí. Ve fyzice je znám Steinerovou vìtou, pomocí které lze poèítat momenty setrvaènosti vzhledem k ose posunuté vzhledem k tìžišti.

49. AllRefer.com - Jakob Steiner (Mathematics, Biography) - Encyclopedia AllRefer.com reference and encyclopedia resource provides complete informationon jakob steiner, Mathematics, Biographies. Includes related research links. http://reference.allrefer.com/encyclopedia/S/SteinerJ.html

AllRefer Channels :: Health Yellow Pages Reference Weather September 07, 2005 Medicine People Places History ... Maps Web AllRefer.com You are here : AllRefer.com Reference Encyclopedia Mathematics, Biographies ... Jakob Steiner By Alphabet : Encyclopedia A-Z S Jakob Steiner, Mathematics, Biographies Related Category: Mathematics, Biographies Jakob Steiner I u r] Pronunciation Key Apollonius of Perga and exerted an important influence on his students, who included Bernhard Riemann Topics that might be of interest to you: Apollonius of Perga Bernhard Riemann Related Categories: People Science and Technology Science and Technology Mathematics ... Biographies More articles from AllRefer Reference on Jakob Steiner SITE MAPS Encyclopedia US Gazetteer: US States A-C US States D-H US States I-L US States M ... Countries A-Z Content on this web site is provided for informational purposes only. We accept no responsibility for any loss, injury or inconvenience sustained by any person resulting from information published on this site. We encourage you to verify any critical information with the relevant authorities. About Us Contact Us Privacy Links Directory ... Link to AllRefer.com

50. Jakob Steiner Biography / Biography Of Jakob Steiner Biographies jakob steiner Biography profile biographies life history. http://www.bookrags.com/biography/jakob-steiner/

Search BookRags.com English History Other Subjects Essays Biographies Research Topics eBooks Register Login Help Literature Study Guides ... Games Welcome, Guest Why not Login or Register Biography Navigation Jakob Steiner Index Main Biography World of Mathematics Biography 1800 To 1899: Mathematics Biography How to Cite Order the PDF Home Biography Jakob Steiner Biographies Complete Biographical Resource See related items by keyword: mathematics education berlin geometry ... yverdon Name: Jakob Steiner Birth Date: March 18, 1796 Death Date: April 1, 1863 Place of Birth: Utzendorf, Switzerland Place of Death: Bern, Switzerland Nationality: Swiss Gender: Male Occupations: mathematician, educator Jakob Steiner Biographies The following biographies focus on different aspects of Jakob Steiner's life and work. All biographies listed are included in the Jakob Steiner Biography Pass. Main Biography (6.1 pages) World of Mathematics Biography (3.7 pages) 1800 To 1899: Mathematics Biography (0.3 pages) Jakob Steiner Biography Each biography is written by a biographical expert, professional educator, or scholar of the individual. Get the Jakob Steiner Biography About Customer Service Report an Error ... Argos

51. Jakob Steiner -- Facts, Info, And Encyclopedia Article jakob steiner. Categories Swiss mathematicians, 1863 deaths, 1796 births jakobsteiner (18 March 1796April 1 1863) was a (The natives or inhabitants of http://www.absoluteastronomy.com/encyclopedia/j/ja/jakob_steiner.htm

Jakob Steiner [Categories: Swiss mathematicians, 1863 deaths, 1796 births] Jakob Steiner (18 March 1796-April 1 1863) was a (The natives or inhabitants of Switzerland) Swiss (A person skilled in mathematics) mathematician He was born in the village of Utzendorf, (Click link for more info and facts about Canton of Bern) Canton of Bern . At eighteen he became a pupil of Heinrich Pestalozzi, and afterwards studied at (Click link for more info and facts about Heidelberg) Heidelberg . Thence he went to Berlin, earning a livelihood there, as in Heidelberg, by giving private lessons. Here he became acquainted with A. L. Crelle, who, encouraged by his ability and by that of N. H. Abel, then also staying at Berlin, founded his famous Journal (1826). After Steiner's publication (1832) of his Systematische Entwickelungen (Click link for more info and facts about Wilhelm von Humboldt) Wilhelm von Humboldt a new chair of geometry was founded for him at (Capital of Germany located in eastern Germany) Berlin (1834). This he occupied till his death, which took place in Bern on the 1st of April 1863. Steiner's mathematical work was confined to (The pure mathematics of points and lines and curves and surfaces) geometry . This he treated synthetically, to the total exclusion of analysis, which he hated, and he is said to have considered it a disgrace to

52. Steiner Surface -- Facts, Info, And Encyclopedia Article They are named after (Click link for more info and facts about jakob steiner)jakob steiner, who discovered them. More Subjects form Category http://www.absoluteastronomy.com/encyclopedia/s/st/steiner_surface.htm

Steiner surface [Categories: Algebraic geometry, Surfaces] In (The pure mathematics of points and lines and curves and surfaces) geometry , the Steiner surfaces are certain self-intersecting embeddings (that is to say, (A form of baptism in which part or all of a person's body is submerged) immersion s) of the real (Click link for more info and facts about projective plane) projective plane into three-dimensional space. More particularly, they are linear projections of a six-dimensional embedding called the (Click link for more info and facts about Veronese surface) Veronese surface , which is the image of an ordinary 2-sphere centered at the origin under the map f x y z x y z yz xz xy There are ten different types, including the (Click link for more info and facts about Roman surface) Roman surface and (Click link for more info and facts about cross-cap) cross-cap They are named after (Click link for more info and facts about Jakob Steiner) Jakob Steiner , who discovered them. More Subjects form Category Klein bottle Sphere Surface Möbius strip ... Bézier surface PrintFooter('Steiner_surface') Arts Business Health Sports ... Random

53. Jakob Steiner: Information From Answers.com steinerBiography of jakob steiner (17961863) jakob steiner was one of the greatestcontributors to projective geometry. steiner did not learn to read and http://www.answers.com/topic/jakob-steiner

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Encyclopedia Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Jakob Steiner Encyclopedia Steiner, Jakob y¤ k´p shtÄ« nər ) , 1796–1863, Swiss mathematician. He was largely self-taught and was professor of geometry at the Univ. of Berlin from 1834. A pioneer in the development of synthetic, or pure, geometry (i.e., deduced by axiomatic methods, as Euclid's geometry), particularly projective geometry, he was considered by many the greatest geometer since Apollonius of Perga and exerted an important influence on his students, who included Bernhard Riemann Wikipedia Jakob Steiner Jakob Steiner 18 March April 1 ) was a Swiss mathematician He was born in the village of Utzendorf Canton of Bern . At eighteen he became a pupil of Heinrich Pestalozzi , and afterwards studied at Heidelberg . Thence he went to Berlin, earning a livelihood there, as in Heidelberg, by giving private lessons . Here he became acquainted with A. L. Crelle, who, encouraged by his ability and by that of N. H. Abel, then also staying at Berlin, founded his famous Journal (1826). After Steiner's publication (1832) of his Systematische Entwickelungen he received, through Jacobi's exertions, who was then professor at K¶nigsberg, an honorary degree of that university; and through the influence of G. J. Jacobi and of the brothers Alexander and

54. ETH E-collection Translate this page jakob steiner (1796-1863) (Teilnachlass). steiner, jakob. WissenschaftshistorischeSammlungen der ETH-Bibliothek, 1985 http://e-collection.ethbib.ethz.ch/show?type=nala&nr=50

55. ETH E-collection Translate this page jakob steiner (1796-1863) Wissenschaftshistorische Sammlungen der ETH-Bibliothek,1985. Stettler, Raymond. Raymond Stettler *1915 http://e-collection.ethbib.ethz.ch/nachlass/sg/12x_e.html

Deutsch Home About E-Collection ETH Zurich ... Responsible Last update: Powered by Browse Document Type Inventories/Personal Papers Mathematics Aleksandrov, Pavel Sergeevic Pavel Sergejewitsch Alexandroff [1896-1982] Wissenschaftshistorische Sammlung der ETH-Bibliothek, 1998 Bernays, Paul Paul Bernays (1888-1977) Wissenschaftshistorische Sammlungen der ETH-Bibliothek, 1986 Buechi, Richard J. Wissenschaftshistorische Sammlungen der ETH-Bibliothek, 1986 Wissenschaftshistorische Sammlungen der ETH-Bibliothek, 1997 Wissenschaftshistorische Sammlungen der ETH-Bibliothek, 1994 Burckhardt, Johann Jakob Johann Jakob Burckhardt [1903-] Wissenschaftshistorische Sammlungen der ETH-Bibliothek, 1996 Deschwanden, Josef Wolfgang von Katalog des Nachlasses von Josef Wolfgang von Deschwanden Wissenschaftshistorische Sammlungen der ETH-Bibliothek, 1985 Fiedler, Ernst Ernst Fiedler Wissenschaftshistorische Sammlungen der ETH-Bibliothek, 1988 Fiedler, Wilhelm Wilhelm Fiedler Wissenschaftshistorische Sammlungen der ETH-Bibliothek, 1985 Finsler, Paul

56. Lexikon Jakob Steiner jakob steiner aus der freien EnzyklopädieWikipedia und steht unter der GNU Lizenz. Die Liste der Autoren ist unter http://lexikon.freenet.de/Jakob_Steiner

E-Mail Mitglieder Community Suche ... Hilfe document.write(''); im Web in freenet.de in Shopping Branchen Lexikon Artikel nach Themen alphabetischer Index Artikel in Kategorien Weitere Themen Doris gegen Angie: Neue Attacke im Krieg ums Kanzleramt Sex mit 50 Cent: Islands Frauen stehen Schlange Die Zukunft von Filesharing: Das kommt auf Sie zu Neuer Alfa im Test: Herrlich b¶se und aufregend maskulin ... "Mensch ¤rgere dich nicht:" Jetzt gratis mitspielen! Sie sind hier: Startseite Lexikon Jakob Steiner Jakob Steiner Jakob Steiner 18. M¤rz in Utzenstorf 1. April in Bern ) war ein schweizer Mathematiker siehe auch: Steinerscher Satz Steiner'sche R¶merfl¤che Bearbeiten Weblinks http://www.mathematik.ch/mathematiker/steiner.php Personendaten NAME Steiner, Jakob ALTERNATIVNAMEN KURZBESCHREIBUNG schweizer Mathematiker GEBURTSDATUM 18. M¤rz GEBURTSORT Utzenstorf STERBEDATUM 1. April STERBEORT Bern Von " http://lexikon.freenet.de/Jakob_Steiner Einordnung Mann Schweizer ... Gestorben 1863 Dieser Artikel basiert auf dem Artikel " Jakob Steiner Wikipedia und steht unter der GNU Lizenz . Die Liste der Autoren ist unter dieser Seite bearbeitet werden.

57. Steinert's Disease - Definition Of Steinert's Disease By The Free Online Diction steiner triple system steiner, (Francis) George steiner, jakob steiner,jakob steiner, Max(imilian Raoul Walter) steiner, Rudolf steiner, Rudolf http://www.thefreedictionary.com/Steinert's disease

Domain='thefreedictionary.com' Your help is needed: American Red Cross The Salvation Army join mailing list webmaster tools Word (phrase): Word Starts with Ends with Definition subscription: Dictionary/ thesaurus Computing dictionary Medical dictionary Legal dictionary Financial dictionary Acronyms Columbia encyclopedia Wikipedia encyclopedia Hutchinson encyclopedia Steinert's disease Also found in: Medical Wikipedia 0.01 sec. Page tools Printer friendly Cite / link Email Feedback Thesaurus Legend: Synonyms Related Words Antonyms Noun Steinert's disease - a severe form of muscular dystrophy marked by generalized weakness and muscular wasting that affects the face and feet and hands and neck; difficult speech and difficulty with the hands that spreads to the arms and shoulders and legs and hips; the onset can be any time from birth to middle age and the progression is slow; inheritance is autosomal dominant myotonia atrophica myotonic dystrophy myotonic muscular dystrophy dystrophy ... muscular dystrophy - any of several hereditary diseases of the muscular system characterized by weakness and wasting of skeletal muscles Mentioned in References in classic literature No references found No references found Dictionary/thesaurus browser Full browser stein Steinbeck Steinberg Steinbock ... Steiner Steinert's disease Steingale Steinheim man Steining Steinkirk ... Steinem, Gloria

58. Steiner Tree Definition of steiner tree, possibly with links to more information andimplementations. Note Named for jakob steiner. Author JLG http://www.nist.gov/dads/HTML/steinertree.html

Steiner tree (definition) Definition: A minimum-weight tree connecting a designated set of vertices , called terminals , in an undirected weighted graph or points in a space. The tree may include non-terminals, which are called Steiner vertices or Steiner points Specialization (... is a kind of me.) Euclidean Steiner tree rectilinear Steiner tree See also minimum spanning tree Note: This differs from the minimum spanning tree in that the set of Steiner vertices must be identified. That is, additional vertices may be used. Named for Jakob Steiner Some authors distinguish between Steiner trees and minimum Steiner trees. Author: JLG Implementation (C and Pascal) GeoSteiner (C) - software for computing steiner trees. More information The Steiner Tree page Go to the Dictionary of Algorithms and Data Structures home page. If you have suggestions, corrections, or comments, please get in touch with Paul E. Black (paul.black@nist.gov). Entry modified Fri Aug 19 11:26:59 2005. HTML page formatted Wed Aug 24 11:23:34 2005. Cite this as: Joseph L. Ganley, "Steiner tree", from

59. Steiner Point Definition of steiner point, possibly with links to more information and Named for jakob steiner. See the following for the geometric (classical) http://www.nist.gov/dads/HTML/steinerpoint.html

Steiner point (definition) Definition: (1) A point that is not part of the input set of points, for instance, a point computed to construct a Steiner tree . (2) A point with a particular geometric relation to a triangle. Note: Also called a Steiner vertex Consider the three points of a triangle. The shortest tree connecting all three, called the Steiner tree , branches out from a fourth point in the middle. That middle point, which was not given initially and must be computed in order to build the shortest tree, is a Steiner point. Author: CRC-A More information Named for Jakob Steiner . See the following for the geometric (classical) definition of a Steiner Point Go to the Dictionary of Algorithms and Data Structures home page. If you have suggestions, corrections, or comments, please get in touch with Paul E. Black (paul.black@nist.gov). Entry modified Fri Dec 17 11:54:48 2004. HTML page formatted Wed Aug 24 11:23:34 2005. Cite this as: Algorithms and Theory of Computation Handbook, CRC Press LLC, 1999, "Steiner point", from Dictionary of Algorithms and Data Structures , Paul E. Black, ed.

60. Biografia De Steiner, Jakob Translate this page steiner, jakob. (Utzenstorf, 1796-Berna, 1863) Matemático suizo. Realizó preferentementeestudios sobre geometría proyectiva utilizando métodos sintéticos http://www.biografiasyvidas.com/biografia/s/steiner_jakob.htm

Inicio Buscador Las figuras clave de la historia Reportajes Los protagonistas de la actualidad Steiner, Jakob (Utzenstorf, 1796-Berna, 1863) Matemático suizo. Realizó preferentemente estudios sobre geometría proyectiva utilizando métodos sintéticos (independientes de las coordenadas). Fue profesor honoris causa de la Universidad de Königsberg y catedrático de la Universidad de Berlín. Inicio Buscador Recomendar sitio

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 3     41-60 of 99    Back | 1  | 2  | 3  | 4  | 5  | Next 20