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九点円 (Euler's Circle)
Author:
増井 貴明 / Takaaki Masui
GeoGebra
New Resources
接点の作る円は内接円
サイクロイド
対数螺旋
standingwave-reflection
二次曲線と離心率
Discover Resources
三角関数の値
等角らせん１
９点円（三角形の不思議な円）
円錐曲線と展開図（conic curves and it on the x-yplane)
媒介変数表示の曲線
Discover Topics
Continuity
Arithmetic Mean
Circumcircle or Circumscribed Circle
Definite Integral
Correlation