Lines Matching full:triangular
35 * decomposed as \f$ A = P^{-1} L U Q^{-1} \f$ where L is unit-lower-triangular, U is
36 * upper-triangular, and P and Q are permutation matrices. This is a rank-revealing LU
125 /** \returns the LU decomposition matrix: the upper-triangular part is U, the
126 * unit-lower-triangular part is L (at least for square matrices; in the non-square
652 * U is upper triangular, with eigenvalues sorted so that any zeros appear at the end.
668 // the main diagonal. We need that to be able to apply our triangular solvers.
683 // ok, we have our trapezoid matrix, we can apply the triangular solver.
