Returning implicit solution instead of explicit solution?
이전 댓글 표시
I tried solving a differential equation

I wrote the code
syms y(x)
ode = diff(y,x) == ((y/x)*cos(y/x))/((x/y).*sin(y/x)+cos(y/x))
ySol(x)= dsolve(ode)
The software is returning implicit solution instead of explicit one but I tried it on Wolfram but it returned an explicit solution. Please help me..
답변 (1개)
Walter Roberson
2017년 10월 28일
0 개 추천
Wolfram Alpha does not return an explicit solution for this.
It returns Log[Sin[y[x]/x]] + Log[y[x]/x] == -Log[x] + Subscript[c, 1]
which is an implicit solution.
댓글 수: 3
Karan Gill
2017년 10월 30일
Additional comment: I think the implicit solution from dsolve could be more helpful. Will follow up on this.
Gopalkrishna Pai
2017년 11월 11일
Walter Roberson
2017년 11월 11일
The code such that the warning does not appear would just consist of turning the warning off, running the same program as above and failing to get a useful solution, and then turning the warning back on again.
Either the ODE has no explicit solution, or else the explicit solution is beyond the abilities of MATLAB, Maple, and Mathematica.
카테고리
도움말 센터 및 File Exchange에서 Programming에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!