Lines Matching refs:givens
24 JacobiRotation<Scalar> givens;
37 /* eliminate the diagonal matrix d using a givens rotation. */
53 /* determine a givens rotation which eliminates the */
55 givens.makeGivens(-s(k,k), sdiag[k]);
59 s(k,k) = givens.c() * s(k,k) + givens.s() * sdiag[k];
60 temp = givens.c() * wa[k] + givens.s() * qtbpj;
61 qtbpj = -givens.s() * wa[k] + givens.c() * qtbpj;
66 temp = givens.c() * s(i,k) + givens.s() * sdiag[i];
67 sdiag[i] = -givens.s() * s(i,k) + givens.c() * sdiag[i];
