33                     typename Dest::RealScalar& tol_error)  in minres()
36             typedef typename Dest::RealScalar RealScalar;  in minres()  typedef
43             const RealScalar rhsNorm2(rhs.squaredNorm());  in minres()
44 …const RealScalar threshold2(tol_error*tol_error*rhsNorm2); // convergence threshold (compared to r…  in minres()
50             RealScalar residualNorm2(v_new.squaredNorm());  in minres()
54             RealScalar beta_new2(v_new.dot(w_new));  in minres()
56             RealScalar beta_new(sqrt(beta_new2));  in minres()
57             const RealScalar beta_one(beta_new);  in minres()
61             RealScalar c(1.0); // the cosine of the Givens rotation  in minres()
62             RealScalar c_old(1.0);  in minres()
63             RealScalar s(0.0); // the sine of the Givens rotation  in minres()
64             RealScalar s_old(0.0); // the sine of the Givens rotation  in minres()
68             RealScalar eta(1.0);  in minres()
83                 const RealScalar beta(beta_new);  in minres()
90                 const RealScalar alpha = v_new.dot(w);  in minres()
100 …const RealScalar r2 =s*alpha+c*c_old*beta; // s, s_old, c and c_old are still from previous iterat…  in minres()
101 …        const RealScalar r3 =s_old*beta; // s, s_old, c and c_old are still from previous iteration  in minres()
102                 const RealScalar r1_hat=c*alpha-c_old*s*beta;  in minres()
103                 const RealScalar r1 =sqrt( std::pow(r1_hat,2) + std::pow(beta_new,2) );  in minres()
208         typedef typename MatrixType::RealScalar RealScalar;