slepc-3.22.2 2024-12-02
PEPSetBasis
Specifies the type of polynomial basis used to describe the polynomial eigenvalue problem.
Synopsis
#include "slepcpep.h"
PetscErrorCode PEPSetBasis(PEP pep,PEPBasis basis)
Logically Collective
Input Parameters
| pep | - the polynomial eigensolver context
|
| basis | - the type of polynomial basis
|
Options Database Key
| -pep_basis <basis> | - Select the basis type
|
Notes
By default, the coefficient matrices passed via PEPSetOperators() are
expressed in the monomial basis, i.e.
P(lambda) = A_0 + lambda*A_1 + lambda^2*A_2 + ... + lambda^d*A_d.
Other polynomial bases may have better numerical behaviour, but the user
must then pass the coefficient matrices accordingly.
See Also
PEPSetOperators(), PEPGetBasis(), PEPBasis
Level
intermediate
Location
src/pep/interface/pepopts.c
Index of all PEP routines
Table of Contents for all manual pages
Index of all manual pages