另请参阅
Brocard 点,
Cleavance 中心,
Cleaver,
内心,
等角共轭点,
Nagel 线,
周长,
Spieker 圆,
Taylor 中心,
三角形重心
使用 Wolfram|Alpha 探索
参考文献
Casey, J. A Treatise on the Analytical Geometry of the Point, Line, Circle, and Conic Sections, Containing an Account of Its Most Recent Extensions, with Numerous Examples, 2nd ed., rev. enl. Dublin: Hodges, Figgis, & Co., p. 81, 1893.Honsberger, R. Episodes in Nineteenth and Twentieth Century Euclidean Geometry. Washington, DC: Math. Assoc. Amer., pp. 3-4, 1995.Johnson, R. A. Modern Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle. Boston, MA: Houghton Mifflin, pp. 226-229 and 249, 1929.Kimberling, C. "Central Points and Central Lines in the Plane of a Triangle." Math. Mag. 67, 163-187, 1994.Kimberling, C. "Spieker Center." http://faculty.evansville.edu/ck6/tcenters/class/spieker.html.Kimberling, C. "Encyclopedia of Triangle Centers: X(10)=Spieker Center." http://faculty.evansville.edu/ck6/encyclopedia/ETC.html#X10.在 Wolfram|Alpha 中被引用
Spieker 中心
引用为
Weisstein, Eric W. "Spieker 中心。" 出自 MathWorld--Wolfram Web 资源。 https://mathworld.net.cn/SpiekerCenter.html
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