It is coming from integration by parts
所有跟帖:
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是这个∫u v dx = u∫v dx - ∫u' (∫v dx) dx. u?
-annabell-
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02/19/2017 postreply
23:01:41
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是 udv = d(uv) - vdu的形式
-加共-
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02/19/2017 postreply
23:31:43