[微積] 偏積分部分想請教一下
黃色部分,做偏積分,正合分別對X,Y去做偏積分,這過程是怎麽來的,想請教一下,感
謝
http://i.imgur.com/vSBZETC.jpg

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推
04/08 16:41, , 1F
04/08 16:41, 1F
→
04/08 16:43, , 2F
04/08 16:43, 2F
→
04/08 16:44, , 3F
04/08 16:44, 3F
→
04/08 17:02, , 4F
04/08 17:02, 4F
→
04/08 17:02, , 5F
04/08 17:02, 5F
→
04/08 17:02, , 6F
04/08 17:02, 6F
推
04/08 17:07, , 7F
04/08 17:07, 7F
→
04/08 17:10, , 8F
04/08 17:10, 8F
→
04/08 17:31, , 9F
04/08 17:31, 9F

→
04/08 17:32, , 10F
04/08 17:32, 10F
推
04/08 18:01, , 11F
04/08 18:01, 11F
→
04/08 18:01, , 12F
04/08 18:01, 12F
→
04/08 18:03, , 13F
04/08 18:03, 13F
→
04/08 18:04, , 14F
04/08 18:04, 14F
推
04/08 18:04, , 15F
04/08 18:04, 15F
→
04/08 18:27, , 16F
04/08 18:27, 16F
→
04/08 18:29, , 17F
04/08 18:29, 17F
→
04/08 18:30, , 18F
04/08 18:30, 18F
推
04/08 18:51, , 19F
04/08 18:51, 19F
→
04/08 18:52, , 20F
04/08 18:52, 20F
→
04/08 19:09, , 21F
04/08 19:09, 21F
→
04/08 19:11, , 22F
04/08 19:11, 22F