// set clamping Factors to delta functions
for( VarSet::const_iterator n = ns.begin(); n != ns.end(); n++ )
clamped->clamp( varindices[*n], s(*n) );
// set clamping Factors to delta functions
for( VarSet::const_iterator n = ns.begin(); n != ns.end(); n++ )
clamped->clamp( varindices[*n], s(*n) );