COMSOL Multiphysics™

eleqc
Make sure that the integration point pattern index you use really does exist and
corresponds to a reasonable integration order. When adding an eleqc element to
an existing model, it may be necessary to extract and modify also the default
elgpspec element.
Examples
Because equation contributions are simply added, you can introduce additions to a
single coefficient using the fem.elem field.
clear fem;
fem.geom = circ2;
fem.mesh = meshinit(fem);
fem.shape = 2;
fem.equ.c = 1; fem.equ.f = 0;
fem.bnd.h = 1;
fem.elem = {};
clear el;
el.elem = 'eleqc';
el.g = {'1'};
el.form = 'coefficient';
el.eqvars = 'off';
clear equ;
equ.dim = {'u'};
equ.ind = {{'1'}};
equ.f = {{'1'}};
equ.ipoints = {{'1'}};
el.geomdim{1} = {{},{},equ};
fem.elem = [fem.elem {el}];
fem.xmesh = meshextend(fem);
fem.sol = femstatic(fem);
postplot(fem,'tridata','u','triz','u','refine',3);
See Also
elempty, eleqw, elgpspec
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