13   return Q((a.coeffs() * (1.0-t) + b.coeffs() * t).normalized());  in nlerp()
26   static const Scalar one = Scalar(1) - dummy_precision<Scalar>();  in slerp_legacy()
36   Scalar scale0 = internal::sin( ( Scalar(1) - t ) * theta) / sinTheta;  in slerp_legacy()
39     scale1 = -scale1;  in slerp_legacy()
48   static const Scalar one = Scalar(1) - epsilon<Scalar>();  in slerp_legacy_nlerp()
57     scale0 = Scalar(1) - t;  in slerp_legacy_nlerp()
66     scale0 = internal::sin( ( Scalar(1) - t ) * theta) / sinTheta;  in slerp_legacy_nlerp()
69       scale1 = -scale1;  in slerp_legacy_nlerp()
92     theta = /*M_PI -*/ Scalar(2)*std::asin( (a.coeffs()+b.coeffs()).norm()/2 );  in slerp_rw()
94     theta = Scalar(2)*std::asin( (a.coeffs()-b.coeffs()).norm()/2 );  in slerp_rw()
100   Scalar scale0 = (Scalar(1)-t)*sin_over_x( ( Scalar(1) - t ) * theta) / sinOverTheta;  in slerp_rw()
103     scale1 = -scale1;  in slerp_rw()
115 //   theta = Scalar(2) * atan2((a.coeffs()-b.coeffs()).norm(),(a.coeffs()+b.coeffs()).norm());  in slerp_gael()
117 //     theta = M_PI-theta;  in slerp_gael()
120     theta = /*M_PI -*/ Scalar(2)*std::asin( (-a.coeffs()-b.coeffs()).norm()/2 );  in slerp_gael()
122     theta = Scalar(2)*std::asin( (a.coeffs()-b.coeffs()).norm()/2 );  in slerp_gael()
127   if(theta*theta-Scalar(6)==-Scalar(6))  in slerp_gael()
129     scale0 = Scalar(1) - t;  in slerp_gael()
135     scale0 = internal::sin( ( Scalar(1) - t ) * theta) / sinTheta;  in slerp_gael()
138       scale1 = -scale1;  in slerp_gael()
150   typedef Quaternion<TestScalar> Qf;  in main()  typedef
169     Qf a, b;  in main()
175     Qf c[6];  in main()
190       Qf refc = cr.cast<TestScalar>();  in main()
199       err[0] = (cr.coeffs()-refc.cast<RefScalar>().coeffs()).norm();  in main()
203         err[k+1] = (c[k].coeffs()-refc.coeffs()).norm();  in main()