[理工] [工數]-Laplce轉換解積分方程
這兩題的型式跟標準式不一樣,請問應該怎麼算才能算出答案?小弟不才,懇請大大寫
份詳解開導小弟一下。皆是出處喻超凡11.6精選習題
t -2u
1. y'(t)=1-∫ y(t-u)e du y(0)=1 [工技電機]
0
-t
ans: y(t)=2-e
-2t 1 ∞ t
2. y(t)=e + ─∫ y(α)δ(t-α)dα+∫sin3αy(t-α)dα [交大環工]
2 0 0
26 -2t 12 8√3
ans: y(t)= ── e - ──cos√3t + ──sin√3t
7 7 7
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 134.208.40.34
推
12/03 20:24, , 1F
12/03 20:24, 1F
→
12/03 20:26, , 2F
12/03 20:26, 2F
→
12/03 20:29, , 3F
12/03 20:29, 3F
→
12/03 20:32, , 4F
12/03 20:32, 4F
推
12/03 20:47, , 5F
12/03 20:47, 5F
→
12/03 20:51, , 6F
12/03 20:51, 6F
推
12/03 20:55, , 7F
12/03 20:55, 7F
→
12/03 20:55, , 8F
12/03 20:55, 8F
→
12/03 21:02, , 9F
12/03 21:02, 9F
推
12/03 21:06, , 10F
12/03 21:06, 10F
→
12/03 21:07, , 11F
12/03 21:07, 11F
→
12/03 21:11, , 12F
12/03 21:11, 12F
→
12/03 21:13, , 13F
12/03 21:13, 13F
→
12/03 21:15, , 14F
12/03 21:15, 14F
推
12/03 21:56, , 15F
12/03 21:56, 15F
→
12/03 22:02, , 16F
12/03 22:02, 16F
推
12/03 22:31, , 17F
12/03 22:31, 17F
推
12/03 22:32, , 18F
12/03 22:32, 18F
推
12/03 22:59, , 19F
12/03 22:59, 19F
→
12/03 23:04, , 20F
12/03 23:04, 20F
→
12/03 23:06, , 21F
12/03 23:06, 21F
→
12/03 23:07, , 22F
12/03 23:07, 22F
→
12/03 23:10, , 23F
12/03 23:10, 23F
→
12/03 23:37, , 24F
12/03 23:37, 24F
→
12/03 23:39, , 25F
12/03 23:39, 25F
推
12/04 00:00, , 26F
12/04 00:00, 26F
→
12/04 00:00, , 27F
12/04 00:00, 27F
→
12/04 00:15, , 28F
12/04 00:15, 28F
推
12/04 00:18, , 29F
12/04 00:18, 29F
→
12/04 00:18, , 30F
12/04 00:18, 30F
→
12/04 00:22, , 31F
12/04 00:22, 31F
→
12/04 00:23, , 32F
12/04 00:23, 32F
推
12/04 00:29, , 33F
12/04 00:29, 33F
→
12/04 00:30, , 34F
12/04 00:30, 34F
→
12/04 00:31, , 35F
12/04 00:31, 35F
推
12/04 00:34, , 36F
12/04 00:34, 36F
→
12/04 00:34, , 37F
12/04 00:34, 37F
→
12/04 00:35, , 38F
12/04 00:35, 38F
→
12/04 00:40, , 39F
12/04 00:40, 39F
→
12/04 00:40, , 40F
12/04 00:40, 40F
推
12/04 00:41, , 41F
12/04 00:41, 41F
→
12/04 00:42, , 42F
12/04 00:42, 42F
→
12/04 00:43, , 43F
12/04 00:43, 43F
→
12/04 00:43, , 44F
12/04 00:43, 44F
→
12/04 00:44, , 45F
12/04 00:44, 45F