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五点を結ぶシュタイナー点
Author:
Bunryu Kamimura
5点ABCDEを結んだ直線の和が最短になる点を求めよ。証明:FK=BK+CK, JF+AJ=GJ, GI+IE=HI
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平均変化率
sine-wave
standingwave-plus
対数螺旋
正17角形 作図 regular 17-gon
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taylor expansion of exp(x)
軌跡(n:m)
数B 2点間の距離 P51例1
Anticomplement
放物線の極と三角形の重心の極線は逆中点三角形の相反共役線
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Pyramid
Tangent Line or Tangent
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