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2016-07-31 06:47:50 +08:00
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CustomView/Advance/[9]Matrix_Basic.md
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@@ -190,9 +190,9 @@ $$)
### 3.旋转 ### 3.旋转
设一个点 A(x<sub>0</sub>, y<sub>0</sub>) ,绕原点旋转 θ 度, 假定点A距离原点距离为 r。 设一个点 A(x<sub>0</sub>, y<sub>0</sub>) ,绕原点旋转 θ 度, 假定点A距离原点距离为 r, 旋转后为点 B(x, y) 如下:
![](http://ww2.sinaimg.cn/large/005Xtdi2jw1f6cpceme7lj308c0dwq30.jpg)
![](http://latex.codecogs.com/png.latex? ![](http://latex.codecogs.com/png.latex?
$$ $$