f08wwf forms the right or left eigenvectors of the real generalized eigenvalue problem
, by backward transformation on the computed eigenvectors given by
f08yxf. It is necessary to call this routine only if the optional balancing routine
f08wvf was previously called to balance the matrix pair
.
If the matrix pair has been previously balanced using the routine
f08wvf then
f08wwf backtransforms the eigenvector solution given by
f08yxf. This is usually the sixth and last step in the solution of the generalized eigenvalue problem.
For a description of balancing, see the document for
f08wvf.
The errors are negligible.
Background information to multithreading can be found in the
Multithreading documentation.
Please consult the
X06 Chapter Introduction for information on how to control and interrogate the OpenMP environment used within this routine. Please also consult the
Users' Note for your implementation for any additional implementation-specific information.
The real analogue of this routine is
f08wjf.