slepc-3.22.1 2024-10-28
STShellSetBackTransform
Sets the routine to be called after the eigensolution process has finished in order to transform back the computed eigenvalues.
Synopsis
#include "slepcst.h"
PetscErrorCode STShellSetBackTransform(ST st,PetscErrorCode (*backtr)(ST st,PetscInt n,PetscScalar *eigr,PetscScalar *eigi))
Logically Collective
Input Parameters
| st | - the spectral transformation context
|
| backtr | - the application-provided backtransform routine
|
Calling sequence of backtr
PetscErrorCode backtr(ST st,PetscInt n,PetscScalar *eigr,PetscScalar *eigi)
| st | - the spectral transformation context
|
| n | - number of eigenvalues to be backtransformed
|
| eigr | - pointer ot the real parts of the eigenvalues to transform back
|
| eigi | - pointer ot the imaginary parts
|
See Also
STShellSetApply(), STShellSetApplyTranspose()
Level
advanced
Location
src/sys/classes/st/impls/shell/shell.c
Examples
src/eps/tutorials/ex10.c
src/eps/tutorials/ex10f.F90
src/eps/tutorials/ex36.c
Index of all ST routines
Table of Contents for all manual pages
Index of all manual pages