DSNEPMatrixFunctionFn#

A prototype of a DSNEP compute matrix function that would be passed to DSNEPSetComputeMatrixFunction().

Synopsis#

PETSC_EXTERN_TYPEDEF typedef PetscErrorCode DSNEPMatrixFunctionFn(DS ds,PetscScalar lambda,PetscBool deriv,DSMatType mat,void *ctx);

Calling Sequence#

  • ds - the direct solver object

  • lambda - point where \(T(\lambda)\) or \(T'(\lambda)\) must be evaluated

  • deriv - if true compute \(T'(\lambda)\), otherwise compute \(T(\lambda)\)

  • mat - the DS matrix where the result must be stored

  • ctx - [optional] user-defined context for private data for the matrix evaluation routine (may be NULL)

See Also#

DS: Direct Solver (or Dense System), DSNEPSetComputeMatrixFunction()

Level#

developer

Location#

include/slepcds.h

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