NEPFunctionFn#

A prototype of a NEP function evaluation function that would be passed to NEPSetFunction().

Synopsis#

PETSC_EXTERN_TYPEDEF typedef PetscErrorCode NEPFunctionFn(NEP nep,PetscScalar lambda,Mat T,Mat P,void *ctx);

Calling Sequence#

  • nep - the nonlinear eigensolver context

  • lambda - the scalar argument where \(T(\cdot)\) must be evaluated

  • T - matrix that will contain \(T(\lambda)\)

  • P - [optional] different matrix to build the preconditioner

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

See Also#

NEP: Nonlinear Eigenvalue Problems, NEPSetFunction()

Level#

beginner

Location#

include/slepcnep.h

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