Merging nodes of a model

A classical problem in FE meshes is the presence of very close nodes instead of having one node merged. To deal with this problem, ones may give a merging tolerance (here 1e-2) and recombine the nodes

  [AllNode,ind]=feutil('addnode epsl 1e-2',model.Node,model.Node);
 model=feutil('renumber',mo2,AllNode(ind,1));
 model.Node=feutil('getnode groupall',model);

The last step just eliminates the unused nodes.