slepc-3.23.1 2025-05-01
   
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