LMESetCoefficients#

Sets the coefficient matrices that define the linear matrix equation to be solved.

Synopsis#

#include "slepclme.h" 
PetscErrorCode LMESetCoefficients(LME lme,Mat A,Mat B,Mat D,Mat E)

Collective

Input Parameters#

  • lme - the linear matrix equation solver context

  • A - first coefficient matrix

  • B - second coefficient matrix

  • D - third coefficient matrix

  • E - fourth coefficient matrix

Notes#

The matrix equation takes the general form \(AXE+DXB=C\), where matrix \(C\) is not provided here but with LMESetRHS(). Not all four matrices must be passed, some can be NULL instead, see LMESetProblemType() for details.

It must be called before LMESetUp(). If it is called again after LMESetUp() then the LME object is reset.

In order to delete a previously set matrix, pass NULL in the corresponding argument.

See Also#

LME: Linear Matrix Equation, LMESolve(), LMESetUp(), LMESetRHS(), LMESetProblemType()

Level#

beginner

Location#

src/lme/interface/lmesetup.c

Examples#

src/lme/tutorials/ex32.c

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