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向日葵製作
Author:
吳政憲
雙螺旋圖形
GeoGebra
伸縮Dilate(poly,r,A) 旋轉Rotate(Dilate(poly,r,A),α,A) 伸縮i次,r^i 旋轉i次,α*i Sequence(Rotate(Dilate(poly1,r^i,A),i*α,A),i,0,n) Sequence(Rotate(list_1,i*2*pi/m,A),i,1,m)
New Resources
兩組對邊相等和有直角的四邊形
Nested spiral octagon
小数 的副本
找出對稱軸
近似值:有效數字
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习题,任意三点不在同一直线上的等四个点,最多能作出几个三角形
正方形
三角形的三角和及外心、內心圓
函數、方程式、參數式
任意三角形
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Triangles
Natural Numbers
Rational Numbers
Set Theory
Parabola