Lines Matching refs:dM
104 D2<SBasis> dM=derivative(curve);
105 if ( are_near(L2sq(dM(t)),0.) && (dM[0].size() > 1) && (dM[1].size() > 1) ) {
106 dM=derivative(dM);
108 if ( are_near(L2sq(dM(t)),0.) && (dM[0].size() > 1) && (dM[1].size() > 1) ) { // try second time
109 dM=derivative(dM);
111 if ( are_near(L2sq(dM(t)),0.) && (dM[0].size() > 1) && (dM[1].size() > 1) ) { // admit defeat
114 Piecewise<D2<SBasis> > unitv = unitVector(dM,tol);
115 Piecewise<SBasis> dMlength = dot(Piecewise<D2<SBasis> >(dM),unitv);