In the intermediate state A is reduced to upper Hessenberg form.
Computation of left eigenvectors is supported, but two-sided Krylov solvers usually rely on the related DSNHEPTS.
DS_MAT_A | - problem matrix | |
DS_MAT_Q | - orthogonal/unitary transformation that reduces to Hessenberg form (intermediate step) or matrix of orthogonal Schur vectors |
0 | - Implicit QR (_hseqr) |
Location: src/sys/classes/ds/impls/nhep/dsnhep.c
Index of all DS routines
Table of Contents for all manual pages
Index of all manual pages