114/6/19 數學學習反思:線性變換

 Today I have learned how to do linear transformation and what's the meaning and propose of doing it. We can solve geometrical problems thorought linear transformation, like rotating a matrix and reflecting a matrix, and the area of graphic thorough linear transformation can be detA times than it's original one.Yeah very cool. 


Today, I learned how to do linear transformations and understood their meaning and purpose.
We can solve geometrical problems through linear transformations, such as rotating a matrix or reflecting a matrix.
The area of a shape after a linear transformation can be det A times its original area.
Yeah, very cool!

今天我學會了怎麼做線性轉換,也理解了它的意義和用途。
我們可以透過線性轉換來解決幾何上的問題,例如旋轉矩陣或反射矩陣。
一個圖形在經過線性轉換後,它的面積可以是原來的 det A 倍。

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