PETSc version 3.17.5
MatQRFactorNumeric
Performs numeric QR factorization of a matrix. Call this routine after first calling MatQRFactorSymbolic().
Synopsis
#include "petscmat.h"
PetscErrorCode MatQRFactorNumeric(Mat fact,Mat mat,const MatFactorInfo *info)
Collective on Mat
Input Parameters
| fact | - the factor matrix obtained with MatGetFactor()
|
| mat | - the matrix
|
| info | - options for factorization
|
Notes
See MatQRFactor() for in-place factorization.
Most users should employ the simplified KSP interface for linear solvers
instead of working directly with matrix algebra routines such as this.
See, e.g., KSPCreate().
See Also
MatQRFactorSymbolic(), MatLUFactor()
Developer Note: fortran interface is not autogenerated as the f90
interface definition cannot be generated correctly [due to MatFactorInfo]
Level
developer
Location
src/mat/interface/matrix.c
Implementations
MatQRFactorNumeric_SPQR in src/mat/impls/aij/seq/spqr/aijspqr.c
MatQRFactorNumeric_SeqDense in src/mat/impls/dense/seq/dense.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages