PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(SlepcArbitrarySelectionFn)(PetscScalar er,PetscScalar ei,Vec xr,Vec xi,PetscScalar *rr,PetscScalar *ri,void *ctx);
er | - real part of the current eigenvalue approximation | |
ei | - imaginary part of the current eigenvalue approximation | |
xr | - real part of the current eigenvector approximation | |
xi | - imaginary part of the current eigenvector approximation | |
rr | - result of evaluation (real part) | |
ri | - result of evaluation (imaginary part) | |
ctx | - [optional] user-defined context for private data for the arbitrary selection routine (may be NULL) |