#include "slepcds.h" PetscErrorCode DSNEPSetComputeMatrixFunction(DS ds,PetscErrorCode (*fun)(DS ds,PetscScalar lambda,PetscBool deriv,DSMatType mat,void *ctx),void *ctx)Logically Collective
ds | - the direct solver context | |
fun | - a pointer to the user function | |
ctx | - a context pointer (the last parameter to the user function) |
PetscErrorCode fun(DS ds,PetscScalar lambda,PetscBool deriv,DSMatType mat,void *ctx)
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 context, as set by DSNEPSetComputeMatrixFunction() |