41. Computational Geometry - Elsevier Elsevier journal edited by JörgRüdiger Sack and Kurt Mehlhorn. http://www.elsevier.com/wps/locate/comgeo

Home Site map Elsevier websites Alerts ... Computational Geometry Journal information Product description Editorial board Online submission of papers Audience ... Special issues and supplements Subscription information Bibliographic and ordering information Conditions of sale Dispatch dates Journal-related information Contact the publisher Impact factor Most downloaded articles Other journals in same subject area ... Select your view COMPUTATIONAL GEOMETRY Theory and Applications Editors-in-Chief: J.-R. Sack, K. Mehlhorn See editorial board for all editors information Description Computational Geometry is a forum for research in theoretical and applied aspects of computational geometry. The journal publishes fundamental research in all areas of the subject, as well as disseminating information on the applications, techniques, and use of computational geometry. Computational Geometry publishes articles on the design and analysis of geometric algorithms. All aspects of computational geometry are covered, including the numerical, graph theoretical and combinatorial aspects. Also welcomed are computational geometry solutions to fundamental problems arising in computer graphics, pattern recognition, robotics, image processing, CAD-CAM, VLSI design and geographical information systems. Computational Geometry features a special section containing open problems and concise reports on implementations of computational geometry tools.

42. Conformal Geometry And Dynamics Contents, abstracts. Full text to subscribers. http://www.ams.org/ecgd/

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43. Saltire Software - Geometry Java Applet Gallery Saltire s geometry Gallery is a collection of Java applets showing interesting geometry configurations. All applets are dynamic in that user input can cause http://www.saltire.com/gallery.html

Saltire Home Geometry Applet Gallery Basic Triangles ... About Saltire Geometry Java Applet Gallery Saltire's Geometry Gallery is a collection of Java applets showing interesting geometry configurations. All applets are dynamic in that user input can cause the configuration to change. In some cases, points can be dragged. In other cases dimensions can be changed via edit controls. Some of the applets feature animation. Basic Geometry Applets in this gallery exhibit basic geometrical properties of angles in parallel lines and circular configurations. We also look at pythagorean triples and incircles. Triangle Calculators Four triangle calculators are presented, which allow for the triangle to be specified either by three sides, two sides and the included angle, two sides and the non-included angle or two angles and one side. In all cases the remaining sides and angles are computed. Advanced Geometry A number of advanced geometrical configurations are presented. These cover theorems about common tangents to circles, Napoleon's theorem on the incenters of equilateral triangles and a number of textbook problems as well as an illustration of Casteljeau's spline construction algorithm.

44. Geometry The word geometry is Greek for geos meaning earth and metron - meaning measure. geometry was extremely important to ancient societies and was used for http://math.about.com/library/weekly/aa031503a.htm

zGCID=" test0" zGCID+=" test14" zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') zDO=0 You are here: About Education Mathematics Math Help and Tutorials ... Geometry Geometry Mathematics Education Mathematics Essentials ... Help Geometry : An Introduction (Terms) A Free On-Line Course In Geometry - Part 1 Background Information Free Geometry Basics Course Part 1 Terms in Geometry Part 2 Types of Angles Part 3 Postulates Part 4 Measuring Angles Part 5 Bisectors, Congruencies, Theorems Part 6 Transfersal Properties Geometry Help Mathematicians Review Conic Sections Pythagorean Theorem Related Resources Measurement Formulas Recommended Resources Area Calculator T he word geometry is Greek for geos - meaning earth and metron - meaning measure. Geometry was extremely important to ancient societies and was used for surveying, astronomy, navigation, and building. Geometry, as we know it is actually known as Euclidean geometry which was written well over 2000 years ago in Ancient Greece by Euclid, Pythagoras, Thales, Plato and Aristotle just to mention a few. The most fascinating and accurate geometry text was written by Euclid, and was called Elements. Euclid's text has been used for over 2000 years! G eometry is the study of angles and triangles, perimeter, area and volume. It differs from algebra in that one develops a logical structure where mathematical relationships are proved and applied. In part 1, you will learn about the basic terms associated with Geometry.

45. International Press Journal Of Differential Geometry Contents from vol.44 (1996). Full text to subscribers. http://www.intlpress.com/JDG/

46. Native American Geometry A physical, proportional geometry that originates from the simple circle. http://www.earthmeasure.com/

The Hexagon, the Solstice and the Kiva chardaker@earthmeasure.com The Hexagon, the Solstice and the Kiva chardaker@earthmeasure.com

47. Slashdot | The Geometry Of Music The geometry of Music article related to Music and Science. http://rss.slashdot.org/~r/Slashdot/slashdot/~3/250026027/article.pl

var adpage = 'article'; var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); Stories Slash Boxes Comments Slashdot Search News for nerds, stuff that matters Log In Create Account Help Subscribe ... Why Subscribe? Log In Nickname Password Public Terminal Create a new account Sections Main Apple AskSlashdot Backslash ... YRO Help FAQ Bugs Stories Old Stories Old Polls Topics Hall of Fame ... Submit Story About Supporters Code Services Jobs PriceGrabber Special Offers Sponsor Solutions ... Jobs Slashdot Log In Log In Nickname Password Public Terminal Create a new account The Geometry of Music Posted by kdawson on Wed Mar 12, 2008 05:26 AM from the fantasia-with-strings dept. An anonymous reader notes a Time.com profile of Princeton University music theorist Dmitri Tymoczko, who has applied some string-theory math to the study of music and found that all possible chordal music can be represented in a higher-dimensional space Tymoczko's site var ad6 = 'active';

48. Geometry & Vectors Properties of straight line segments. The gradient of a straight line segment. Equations of straight lines. The geometry of a circle. Conic sections http://www.mathtutor.ac.uk/geometry/Main.html

Quit Please choose from the following: Play video Full Screen Diagnostic test Video Tutorial Summary text ... Extensions Geometry Properties of straight line segments The gradient of a straight line segment Equations of straight lines The geometry of a circle ... Polar co-ordinates Vectors Introduction to vectors Cartesian components of vectors The scalar product The vector product ... Simultaneous linear equations Geometry Animal movement - Iain Couzin Graphic designer - Keith Robinson Parabolas Vectors Force and motion - Mike Savage History Diagnostic Test Summary Text ... Exercises

49. Non-Euclidean Geometry Saccheri then studied the hypothesis of the acute angle and derived many theorems of nonEuclidean geometry without realising what he was doing. http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Non-Euclidean_geometry.ht

Non-Euclidean geometry Geometry and topology index History Topics Index Version for printing In about 300 BC Euclid wrote The Elements, a book which was to become one of the most famous books ever written. Euclid stated five postulates on which he based all his theorems: To draw a straight line from any point to any other. To produce a finite straight line continuously in a straight line. To describe a circle with any centre and distance. That all right angles are equal to each other. That, if a straight line falling on two straight lines make the interior angles on the same side less than two right angles, if produced indefinitely, meet on that side on which are the angles less than the two right angles. It is clear that the fifth postulate is different from the other four. It did not satisfy Euclid and he tried to avoid its use as long as possible - in fact the first 28 propositions of The Elements are proved without using it. Another comment worth making at this point is that Euclid , and many that were to follow him, assumed that straight lines were infinite. Proclus (410-485) wrote a commentary on The Elements where he comments on attempted proofs to deduce the fifth postulate from the other four, in particular he notes that

50. Topology And Geometry A collection of educational, graphical and research software by Jeff Weeks. http://www.geometrygames.org/

Jeff Weeks’ Topology and Geometry Software Torus Games Eight familiar games introduce children age 10 and up to the concept of a finite yet unbounded universe. Mac OS X Windows XP info download Kali Children of all ages create beautiful art based on the 17 tiling patterns. Windows 95/XP , Mac Classic info download KaleidoTile Explore polyhedra and tessellations while creating colorful works of art. Windows 95/XP , Mac Classic info download Curved Spaces Math and physics students experience flight in a multiconnected universe. Mac OS X Windows XP info download Exploring the Shape of Space Two-week geometry unit introduces students grades 6-10 to multiconnected universes. info download SnapPea Researchers create and study 3-manifolds. Mac OS X , Linux, Mac Classic info download Recent Updates SnapPea Bug fix: (thanks to Nathan Dunfield for reporting the problem) Kali Swedish added, thanks to sa Kronkvist KaleidoTile Portuguese added, thanks to

51. Two-dimensional Geometry And The Golden Section The golden section geometrical methods, its occurrence in pentagons, pentagrams and decagons; paper folding, Penrose tilings, trigonometry and Phi. http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/phi2DGeomTrig.html

Two-dimensional Geometry and the Golden section or Fascinating Flat Facts about Phi On this page we meet some of the marvellous flat (that is, two dimensional) geometry facts related to the golden section number Phi. A following page turns our attention to the solid world of 3 dimensions. Contents of this Page The icon means there is a Things to do investigation at the end of the section. Constructions for the Golden ratio Constructing the internal golden section points: phi Given any line AB, find a point G phi of the way along it. Constructing the external golden section points: Phi Given any line AB, make a new line AG which is Phi times as long. Hofstetter's 3 Constructions of Gold Points Using only circles Another even simpler method! Lemoine's construction of the golden section ... Pentagons and Pentagrams There are two kinds of triangles in pentagons and pentagrams, both have sides of length Phi and 1. Making a Paper Knot to show the Golden Section in Pentagons Flags of the World and pentagram stars Phi and Triangles Phi and the Equilateral Triangle Use a hexagon in a circle to make an equilateral triangle and then you've already got a golden section point on a line! Phi and the Pentagon Triangles The two triangles of the pentagon and pentagram have some more interesting interactions involving Phi.

52. Geometry Algorithm Home Resources for computational geometry algorithm software programming including monthly algorithms with C++ code and an archive, AND a short history of http://geometryalgorithms.com/

Geometry Algorithms [Home] Overview History Algorithms Books ... Gift Shop Welcome to Dan Sunday's Geometry Algorithms web site. Here you will find resources for developing geometry algorithm and computer graphics software. Whether you're just interested in learning about this class of algorithms, or have a real problem to solve, we may have what you need. Look around. Visit the Geometry Gift Shop Hot Books (Click on Cover for Info) The Road to Reality by Roger Penrose Computational Geometry in C by Joseph O'Rourke Computational Geometry by Mark de Berg et al Geometric Tools Overview Linear Algebra (PDF) Geometry History Geometers History Books History Web Sites ... Video Lessons Featured Items The Standard Deviants: Learn Geometry (Video) by Cerebellum Corp Origami Design Secrets: Mathematical Methods for an Ancient Art by Robert Lang Need Help? Contact us at: services@softsurfer.com Help SUPPORT This Site Please make purchases through this site to help support us. The cost is the same to you, but we get a small commission.

53. Thinking Fountain: Bubble Geometry Bubble geometry. Q icon(9k) Have you ever seen a square bubble? Experiment with bubbles. Create bubble wands out of found objects (straws, pipe cleaners, http://www.thinkingfountain.org/b/bubblegeometry/bubblegeometry.html

Bubble Geometry Have you ever seen a square bubble? Experiment with bubbles. Create bubble wands out of found objects (straws, pipe cleaners, strawberry baskets and coathangers) and have your own bubble festival. How can you catch a bubble? The secret is the soap solution. Try catching a bubble with a dry hand versus a wet hand. Which lasts longer? This activity is included in the Shapes cluster developed with K-2 teachers at the Ross School in San Francisco. What could you use to make lots of tiny bubbles? How could you measure a bubble? Why do bubbles fall towards the ground? Bubbles Soap bubbles are so fun! Make your own bubble prints Index of ideas Gathered by topic Connected together Try something new

54. Funbrain.com Shape Surveyor Geometry Game Improve your geometry skills. Fun game teaches area and perimeter of rectangles and squares with an archeology twist. For kids and children of all ages and http://www.funbrain.com/poly/

Pick the difficulty level you wish to play. Easy Medium Hard Super Brain Pick if you would like to play perimeters and/or areas and hit "Start Digging" to begin the game. Area and Perimeter Area Perimeter Instructions You will be shown a rectangle with the dimensions labeled. You must calculate the area or perimeter of the rectangle. For each problem you get correct, you will receive a piece of an archeological puzzle. The game is over when you get all the puzzle pieces. Parents Teachers Quiz Lab MyGradeBook ... Link to Us

55. Anti-Grain Geometry - About News License Download Screenshots Demo SVG Viewer AGG@PAS CVS Documentation Tips Tricks Research Articles http://antigrain.com/

The latest news: July 8, 2007: New article Texts Rasterization Exposures The AGG button: News Docs Download Mailing List ... CVS High Fidelity 2D Graphics A High Quality Rendering Engine for C++ Also Visit: Maxim Shemanarev Web Design and Programming Maxim Shemanarev

56. Fractal Geometry An educational resource on the mathematical framework and formalism from the Yale University, covering the concept of self similarity. http://classes.yale.edu/fractals/

57. Earliest Uses Of Symbols From Geometry C. B. Boyer in his History of Analytic geometry (1956, p. 205) points to a passage in Monge where the “modern pointslope form of plane equation of the http://members.aol.com/jeff570/geometry.html

Earliest Uses of Symbols from Geometry Last revision: Nov. 4, 2006 Lettering of geometric figures. The designation of points, lines, and planes by a letter or letters was in vogue among the ancient Greeks and has been traced back to Hippocrates of Chios (about 440 B. C.) (Cajori vol. 1, page 420, attributed to Moritz Cantor). Lettering of triangles. Richard Rawlinson in a pamphlet prepared at Oxford sometime between 1655 and 1668 used A, B, C for the sides of a triangle and a, b, c for the opposite angles. In his notation, A was the largest side and C the smallest (Cajori vol. 2, page 162). Leonhard Euler and Thomas Simpson reintroduced this scheme many years later, Euler using it in 1753 in (Cajori vol 2., page 162). Euler used capital letters for the angles. In 1866, Karl Theodor Reye (1838-1919) proposed the plan of using capital letters for points, lower case letters for lines, and lower case Greek letters for planes in a remarkable two-volume work on geometry, Die Geometrie der Lage (Cajori vol. 1, page 423). As early as 1618, an anonymous writer of the "Appendix" in the 1618 edition of Edward Wright's translation of John Napier's "Mirifici logarithmorum canonis descriptio" labeled the right angle of a triangle with the letter

58. Journal For Geometry And Graphics Biannual journal about graphics and graphicsrelated geometry, published by Heldermann Verlag. Includes several of the papers online. http://www.emis.de/journals/JGG/

Journal for Geometry and Graphics Editorial Board G. Bertoline (West Lafayette), Y. Charit (Haifa), Chen Jiannan (Beijing), L. D. Goss (Evansville), J. Hoschek (Darmstadt), S. Ino (Hokkaido), R. D. Jenison (Ames), C. Leopold (Kaiserslautern), E. Molnár (Budapest), S. Nagano (Tokyo), M. Palej (Gliwice), K. Suzuki (Tokyo), J. P. Tschupik (Innsbruck), G. Weiß (Dresden), K. Yoshida (Osaka) Managing Editors R. E. Barr (Austin), M. Kato (Tokyo), H. Stachel (Vienna) The concern of this international scientific journal is to stimulate scientific research and teaching methodology in the field of graphics and graphics-related geometry by the dissemination of new results. The published papers are ordered into three groups: Theoretical Graphics (Section 1), Applications (Section 2), Graphics Education (Section 3). For fastest access: Choose your nearest server! Editorial Contents Volume 5 (2001) Number 1 Number 2 Volume 4 (2000) Number 1 Number 2 Volume 3 (1999) Number 1 Number 2 Volume 2 (1998) Number 1 Number 2 Volume 1 (1997) Number 1 Number 2 ELibM and Heldermann Verlag

59. Noncommutative Geometry During August 1530, 2007, a school and workshop on noncommutative geometry took place at the Chern Institute in Nankai University in Tianjin, China. http://noncommutativegeometry.blogspot.com/

skip to main skip to sidebar Noncommutative geometry Blog Archive May NCG and F_un Vanderbilt Lectures April ... January Events Distinguished Lecture Series, Alain Connes, Fields Institute, May 28-30, 2008 Workshop on Noncommutative Geometry, Fields Institute, Toronto, May 27 - 31, 2008 Noncommutative geometry and geometry over the field with one element May 15-18, 2008 Trimester Program on Geometry and Physics, May - August 2008, Hausdorff Research Institute for Mathematics, Bonn, Germany ... Conference on Noncommutative Geometry in honor of Joachim Cuntz, September 24-27, 2008, Muenster Positions available Chair of Analysis Utrecht PhD position in project 'From Arithmetic Geometry to Noncommutative Geometry', University Utrecht (New!) Maitre de Conference at Laboratoire de math©matiques et applications de Metz Postdoc Positions in Mathematics (Copenhagen) ... PhD position on integration theory in quantum group theory and noncommutative geometry, Radboud University in Nijmegen Links Journal of Noncommutative Geometry The n-Category Caf© Not Even Wrong Never Ending Books ... Vivatsgasse 7 Past Events Le mod¨le spectral; Course by Alain Connes, 10 janvier- 6 mars 2008; Coll¨ge de France

60. CGAL - Computational Geometry Algorithms Library A collaborative effort to develop a robust, easy to use, and efficient C++ software library of geometric data structures and algorithms. http://www.cgal.org/

Home Software Online Manual All Manuals The CGAL Philosophy Download ... Work in Progress Support FAQ Supported Platforms Reporting Bugs Mailing Lists Project Project Members Project Rules Getting Involved Project History ... Members Area Dissemination News Events Classes Other Resources Python Bindings CGAL-Ipelets Scilab Geometry Toolbox Projects Using CGAL ... Related Links www cgal.org The goal of the CGAL Open Source Project is to provide easy access to efficient and reliable geometric algorithms in the form of a C++ library. CGAL is used in various areas needing geometric computation, such as: computer graphics, scientific visualization, computer aided design and modeling, geographic information systems, molecular biology, medical imaging, robotics and motion planning, mesh generation, numerical methods... More on the projects using CGAL web page. The Computational Geometry Algorithms Library ( CGAL ), offers data structures and algorithms like triangulations (2D constrained triangulations and Delaunay triangulations in 2D and 3D), Voronoi diagrams (for 2D and 3D points, 2D additively weighted Voronoi diagrams, and segment Voronoi diagrams)

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