STMatMult#

Computes the matrix-vector product \(y = T_k x\), where \(T_k\) is the \(k\)-th (transformed) matrix of the spectral transformation.

Synopsis#

#include "slepcst.h" 
PetscErrorCode STMatMult(ST st,PetscInt k,Vec x,Vec y)

Neighbor-wise Collective

Input Parameters#

  • st - the spectral transformation context

  • k - index of matrix to use

  • x - the vector to be multiplied

Output Parameter#

  • y - the result

See Also#

ST: Spectral Transformation, STMatMultTranspose(), STMatMultHermitianTranspose(), STGetMatrixTransformed()

Level#

developer

Location#

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

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