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線性變換矩陣（二階）的副本
Author:
xiaodandan
,
arist
GeoGebra
New Resources
美國國旗 (Codex 版)
Fibonacci Clock
中華民國國旗 (Codex╱2026.10.06)
算柱 (兩位數)
Earth with coastline
Discover Resources
阿朗插值多項式
尺規作圖乾淨版
會逗留的折線
Salaries Tax (F.3)
動態模擬(摺紙）(1060724)
Discover Topics
Distributions
Function Graph
Quadratic Functions
Constructions
Expected Value