另请参阅
劈裂中心,
旁心,
旁心三角形,
旁切圆,
弗尔曼圆,
格尔贡点,
米滕点,
内格尔线,
分割线,
三等分周长点
使用 探索
参考文献
Altshiller-Court, N. College Geometry: A Second Course in Plane Geometry for Colleges and Normal Schools, 2nd ed., rev. enl. New York: Barnes and Noble, pp. 160-164, 1952.Bennett, G.; Glenn, J.; Kimberling, C.; and Cohen, J. M. "Problem E 3155 and Solution." Amer. Math. Monthly 95, 874, 1988.Chen, J.; Lo, C.-H.; and Lossers, O. P. "Problem E 3397 and Solution." Amer. Math. Monthly 99, 70-71, 1992.Coolidge, J. L. A Treatise on the Geometry of the Circle and Sphere. New York: Chelsea, p. 53, 1971.Eves, H. W. A Survey of Geometry, rev. ed. Boston, MA: Allyn and Bacon, p. 83, 1972.Gallatly, W. "The Nagel Point." §30 in The Modern Geometry of the Triangle, 2nd ed. London: Hodgson, p. 20, 1913.Honsberger, R. "The Nagel Point
and the Spieker Circle." §1.4 in Episodes in Nineteenth and Twentieth Century Euclidean Geometry. Washington, DC: Math. Assoc. Amer., pp. 5-13, 1995.Johnson, R. A. Modern Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle. Boston, MA: Houghton Mifflin, pp. 184 and 225-226, 1929.Kimberling, C. "Central Points and Central Lines in the Plane of a Triangle." Math. Mag. 67, 163-187, 1994.Kimberling, C. "Nagel Point." http://faculty.evansville.edu/ck6/tcenters/class/nagel.html.Kimberling, C. "Encyclopedia of Triangle Centers: X(8)=Nagel Point." http://faculty.evansville.edu/ck6/encyclopedia/ETC.html#X8.Nagel, C. H. Untersuchungen über die wichtigsten zum Dreiecke gehöhrigen Kreise. Eine Abhandlung aus dem Gebiete der reinen Geometrie. Leipzig, Germany, 1836.在 中被引用
内格尔点
请引用为
Weisstein, Eric W. "Nagel Point." 来自 —— 资源。 https://mathworld.net.cn/NagelPoint.html
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