作者hank546288 (hanker8862)
看板Math
标题[其他] 微分方程求解
时间Mon Mar 19 21:05:01 2018
https://imgur.com/a/5On2E
求解第一题 由於微积分还没教完
大一就先上物理数学 不知道怎麽解这一题
有人能为我解答吗? 感谢
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1F：推 Rcomplete : hint: This is an Euler-Cauchy equation. 03/19 22:46
2F：→ keith291 : 这不是 他二次微分项前面是x的一次方 03/20 01:43
4F：→ keith291 : 确定题目没有错？ 03/20 01:46
5F：推 Rcomplete : Indeed, it's an E.-C. eq. Try to multiply both 03/20 07:24
6F：→ Rcomplete : sides of the equation by x and see what's going 03/20 07:25
7F：→ Rcomplete : on. I have solved this kind of eq. in the 03/20 07:26
8F：→ Rcomplete : textbook by Kreyszig. The procedure described 03/20 07:27
9F：→ Rcomplete : above should help. Just give it a try. 03/20 07:27
10F：推 Rcomplete : !! I'm sorry. I have mistaken y for y'. 03/20 07:32
11F：推 Rcomplete : Sorry. 03/20 07:42
12F：→ HeterCompute: 2次微分只给一个初始条件，是不是搞错了什麽？ 03/20 08:55