STApply#

Applies the spectral transformation operator to a vector, for instance \(y=(A - \sigma B)^{-1} Bx\) in the case of the shift-and-invert transformation and generalized eigenproblem.

Synopsis#

#include "slepcst.h" 
PetscErrorCode STApply(ST st,Vec x,Vec y)

Collective

Input Parameters#

  • st - the spectral transformation context

  • x - input vector

Output Parameter#

  • y - output vector

See Also#

ST: Spectral Transformation, STApplyTranspose(), STApplyHermitianTranspose()

Level#

developer

Location#

src/sys/classes/st/interface/stsolve.c

Implementations#

STApply_Shell() in src/sys/classes/st/impls/shell/shell.c

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