If we want to transform vector A from cooedinate ei to ei',(adsbygoogle = window.adsbygoogle || []).push({});

then this formula occur:

Aj' = aij Ai

But I have a question, if I have found all components of Aj', then I want to transform it back to Ai, what should I do?

I have tried Ai = aij Aj'

but it won't give me the same number.

Thanks...

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# Coordinate Transformation

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