slepc-main 2024-11-09
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DSNEPSetComputeMatrixFunction

Sets a user-provided subroutine to compute the matrices T(lambda) or T'(lambda).

Synopsis

#include "slepcds.h" 
PetscErrorCode DSNEPSetComputeMatrixFunction(DS ds,DSNEPMatrixFunctionFn *fun,void *ctx)
Logically Collective

Input Parameters

ds  - the direct solver context
fun  - matrix function evaluation routine, see DSNEPMatrixFunctionFn for the calling sequence
ctx  - a context pointer (the last parameter to the user function)

Note

The result is computed as T(lambda) = sum_i E_i*f_i(lambda), and similarly for the derivative.

See Also

DSNEPGetComputeMatrixFunction()

Level

developer

Location

src/sys/classes/ds/impls/nep/dsnep.c

Index of all DS routines
Table of Contents for all manual pages
Index of all manual pages