Re: [理工] [工數] 逆運算子
※ 引述《aboyfun (新心情)》之銘言:
: 請問
: y''-y= 2e^x
: 這個如何用逆運算子求特解?
: thx
剛起床ㄜㄜ@@
[D^2-1]yp = 2e^x
1
yp =2 ----------e^x
(D+1)(D-1)
1
yp =2e^x-------
(D+2)D
1
=2e^x--------x
2
=xe^x
--
小犬
http://www.wretch.cc/blog/Tall781218
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.118.233.115
→
07/24 09:44, , 1F
07/24 09:44, 1F
→
07/24 09:47, , 2F
07/24 09:47, 2F
→
07/24 09:52, , 3F
07/24 09:52, 3F
→
07/24 09:52, , 4F
07/24 09:52, 4F
推
07/24 10:01, , 5F
07/24 10:01, 5F
推
07/24 10:49, , 6F
07/24 10:49, 6F
→
07/24 11:41, , 7F
07/24 11:41, 7F
→
07/24 11:42, , 8F
07/24 11:42, 8F
推
07/24 12:31, , 9F
07/24 12:31, 9F
→
07/24 12:38, , 10F
07/24 12:38, 10F
→
07/24 14:01, , 11F
07/24 14:01, 11F
→
07/24 16:14, , 12F
07/24 16:14, 12F
→
07/24 16:19, , 13F
07/24 16:19, 13F
→
07/24 16:20, , 14F
07/24 16:20, 14F
→
07/24 16:52, , 15F
07/24 16:52, 15F
推
07/24 19:26, , 16F
07/24 19:26, 16F
→
07/24 19:26, , 17F
07/24 19:26, 17F
推
07/24 19:39, , 18F
07/24 19:39, 18F
→
07/24 19:48, , 19F
07/24 19:48, 19F
推
07/24 20:01, , 20F
07/24 20:01, 20F
→
07/24 20:26, , 21F
07/24 20:26, 21F
→
07/24 20:26, , 22F
07/24 20:26, 22F
→
07/24 20:27, , 23F
07/24 20:27, 23F
※ 編輯: Tall781218 來自: 140.118.233.115 (07/24 20:28)
→
07/24 21:57, , 24F
07/24 21:57, 24F
→
07/24 22:06, , 25F
07/24 22:06, 25F
推
07/24 23:24, , 26F
07/24 23:24, 26F
→
07/25 00:08, , 27F
07/25 00:08, 27F
→
07/25 00:10, , 28F
07/25 00:10, 28F
→
07/25 18:11, , 29F
07/25 18:11, 29F
→
07/25 18:11, , 30F
07/25 18:11, 30F
→
07/25 20:34, , 31F
07/25 20:34, 31F
→
07/25 20:54, , 32F
07/25 20:54, 32F
→
07/25 20:54, , 33F
07/25 20:54, 33F
→
07/25 20:55, , 34F
07/25 20:55, 34F
→
07/25 22:52, , 35F
07/25 22:52, 35F
→
07/26 09:46, , 36F
07/26 09:46, 36F
推
07/26 13:56, , 37F
07/26 13:56, 37F
→
07/26 21:27, , 38F
07/26 21:27, 38F
→
07/26 21:27, , 39F
07/26 21:27, 39F
→
07/26 21:40, , 40F
07/26 21:40, 40F
→
07/26 21:41, , 41F
07/26 21:41, 41F
→
07/26 21:41, , 42F
07/26 21:41, 42F
→
07/26 21:45, , 43F
07/26 21:45, 43F
→
07/26 21:46, , 44F
07/26 21:46, 44F
→
07/26 21:46, , 45F
07/26 21:46, 45F
推
07/26 21:51, , 46F
07/26 21:51, 46F
推
07/26 21:54, , 47F
07/26 21:54, 47F
→
07/26 21:55, , 48F
07/26 21:55, 48F
→
07/26 21:57, , 49F
07/26 21:57, 49F
→
07/26 23:02, , 50F
07/26 23:02, 50F
→
07/26 23:09, , 51F
07/26 23:09, 51F
→
10/24 12:06, , 52F
10/24 12:06, 52F
討論串 (同標題文章)