Problem solving most simple elliptic PDE, 2015a
조회 수: 1 (최근 30일)
이전 댓글 표시
Trying to solve $\Delta u=1$ on the unit square, I currently do
pdem = createpde(1); c=1; a=0; f=1; geometryFromEdges(pdem,@squareg); generateMesh(pdem,'Hmax',0.2); assempde(pdem,c,a,f);
Unfortunately, the last command does not work, since it requires additionally the specification of variables P, E,T, which according to the help output specify a mesh.
Why do I need to specify the mesh again in order to solve the PDE? HOW do I specify the mesh? 'generateMesh' only gives one output.
댓글 수: 0
채택된 답변
Alan Weiss
2016년 4월 13일
I do not see any error when using your set of commands, though I think the last command should be
u = assempde(pdem,c,a,f);
so you get the solution in a variable.
If you really get an error with that set of commands, please post the error that MATLAB returns.
Alan Weiss
MATLAB mathematical toolbox documentation
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Geometry and Mesh에 대해 자세히 알아보기
제품
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!