"نو نقاطی دائرہ" کے نسخوں کے درمیان فرق

 

==بیرونی روابط==

*[http://faculty.evansville.edu/ck6/encyclopedia/ETC.html ''Encyclopedia of Triangles Centers''] by Clark Kimberling. The nine-point center is indexed as X(5), the Feuerbach point, as X(11), the center of the Kiepert hyperbola as X(115), and the center of the Jeřábek hyperbola as X(125).

* History about the nine-point circle based on J.S. MacKay's article from 1892: [http://jwilson.coe.uga.edu/EMT668/EMT668.Folders.F97/Anderson/geometry/geometry1project/historyofninepointcircle/history.html History of the Nine Point Circle]

* [http://www.cut-the-knot.org/Curriculum/Geometry/SixPointCircle.shtml Nine Point Circle in Java] at [[cut-the-knot]]

* [http://www.cut-the-knot.org/Curriculum/Geometry/FeuerbachProof.shtml Feuerbach's Theorem: a Proof] at [[cut-the-knot]]

* [http://demonstrations.wolfram.com/TheCenterAndRadiusOfTheNinePointCircle/ Interactive Nine Point Circle applet] from the Wolfram Demonstrations Project

* [http://dynamicmathematicslearning.com/ninepointconic.html Nine-point conic and Euler line generalization] at [http://dynamicmathematicslearning.com/JavaGSPLinks.htm Dynamic Geometry Sketches] Generalizes nine-point circle to a nine-point conic with an associated generalization of the Euler line.