英和和英

出典:『Wikipedia』 (2009/04/27 17:03 UTC 版)

英語による解説

引用

In Euclidean geometry, every triangle has two isodynamic points, usually denoted as S and S^'. These points are the common intersection points of the three circles of Apollonius associated with the triangle; hence, the line through these points is the common radical axis for these circles. The centers of these circles are collinear; they all fall on the Lemoine line, which is perpendicular to the radical axis defined by the isodynamic points.