題:
高等微積分求詳解。              ?
2020-05-12 03:44:47 UTC
求詳解？
二 答案:
?
2020-05-12 07:19:50 UTC
問題不難，初微程度，只是比較煩瑣而已.





(發現回答被隱了...)
?
2020-05-12 15:48:23 UTC
Since any inner product results a scalar, (f ,g)h is C1, just like function kh(x), because h is C1. And D{(f,g)h}(x)= (f,g) D{h(x)}, where (f,g) is the inner product of f and g, chosen earlier.


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此內容最初發佈在 Y! Answers 上，這是一個於 2021 年關閉的問答網站
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