STCayleySetAntishift#
Sets the value of the anti-shift for the Cayley spectral transformation.
Synopsis#
#include "slepcst.h"
PetscErrorCode STCayleySetAntishift(ST st,PetscScalar nu)
Logically Collective
Input Parameters#
st - the spectral transformation context
nu - the anti-shift
Options Database Key#
-st_cayley_antishift - Sets the value of the anti-shift
Note#
In the generalized Cayley transform, the operator can be expressed as OP = inv(A - sigma B)*(A + nu B). This function sets the value of nu. Use STSetShift() for setting sigma. The value nu=-sigma is not allowed.
See Also#
STSetShift(), STCayleyGetAntishift()
Level#
intermediate
Location#
Implementations#
STCayleySetAntishift_Cayley() in src/sys/classes/st/impls/cayley/cayley.c
Index of all ST routines Table of Contents for all manual pages Index of all manual pages