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楕円・楕円の方程式
Author:
K.Wajima
Topic:
Ellipse
GeoGebra
New Resources
正17角形 作図 regular 17-gon
サイクロイド
standingwave-reflection-fixed
接点の作る円は内接円
対数螺旋
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回転体の成す曲面
Euclidean Geometry
等角写像( conformal transformation)
離心率 こちらのほうが
対象座標法の理解
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Constructions
Area
Numbers
Sphere
Linear Functions