CreateMeshTriangle("test",[0,0,1;1,0,2;1,1,1;0,1,1],0.01)
[nodes,elem,edges]=ReadMeshTriangle("./test.1");
ShowMesh(nodes,elem)
disp("hit return");pause();

[A,b,n2d]=FEMEquation(nodes,elem,edges,1,0,1,0,1);
u=FEMSolveSym(nodes,A,b,n2d,0);
ShowSolution(nodes,elem,u)

