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重複組合
Author:
羅驥韡 (Pegasus Roe)
將 n 個相同物品分給 k 個人（重複組合）
GeoGebra
New Resources
畫出對稱圖形
【案例】2013年安徽高考15题
兩位數除以一位數（一）
三位數除以一位數（二）
球體建築師
Discover Resources
Locus of a vertex of equilateral triangle
for 學姊
曲線上的箭頭 (Arrow on Curve)
spinral
gltyz 矩形旋轉體
Discover Topics
Inequalities
Mode
Special Points
Circumcircle or Circumscribed Circle
Parallelogram