43     JacobiRotation(const Scalar& c, const Scalar& s) : m_c(c), m_s(s) {}  in JacobiRotation()
47     Scalar& s() { return m_s; }  in s()
48     Scalar s() const { return m_s; }  in s()
54       return JacobiRotation(m_c * other.m_c - conj(m_s) * other.m_s,
55                             conj(m_c * conj(other.m_s) + conj(m_s) * conj(other.m_c)));
59     JacobiRotation transpose() const { using numext::conj; return JacobiRotation(m_c, -conj(m_s)); }  in transpose()
62     JacobiRotation adjoint() const { using numext::conj; return JacobiRotation(conj(m_c), -m_s); }  in adjoint()
74     Scalar m_c, m_s;  variable
91     m_s = Scalar(0);  in makeJacobi()
109     m_s = - sign_t * (numext::conj(y) / abs(y)) * abs(t) * n;  in makeJacobi()
165     m_s = 0;  in makeGivens()
171     m_s = -q/abs(q);  in makeGivens()
190       m_s = -qs*conj(ps)*(m_c/p2);  in makeGivens()
207       m_s = -conj(ps) * (q/u);  in makeGivens()
222     m_s = Scalar(0);  in makeGivens()
228     m_s = q<Scalar(0) ? Scalar(1) : Scalar(-1);  in makeGivens()
238     m_s = -t * m_c;  in makeGivens()
247     m_s = -Scalar(1)/u;  in makeGivens()
248     m_c = -t * m_s;  in makeGivens()