What is the difference between exp and expm in terms of a matrix ?

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Alex
Alex 2012-12-4
When I want to get the exponential of a matrix what method is the most accurate ? Please, help me. I want as much details as you know.
Thank you !

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Matt Fig
Matt Fig 2012-12-4
编辑：Matt Fig 2012-12-5
EXPM Documentation
If you look at that link, the difference is explained. They are NOT the same thing so there is no way to ask which is most accurate.

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