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There are three classes of LAPACK routines:
- driver routines solve a complete problem, such as solving
a system of linear equations or computing the eigenvalues of a real
symmetric matrix. Users are encouraged to use a driver routine if there
is one that meets their requirements. The driver routines are listed
in Appendix A and the LAPACK Users' Guide .
- computational routines, also called simply LAPACK routines,
perform a distinct computational task, such as computing
the 2#2 decomposition of an 3#3-by-4#4 matrix or finding the
eigenvalues and eigenvectors of a symmetric tridiagonal matrix using
the 5#5 algorithm.
The LAPACK routines are listed in Appendix A and the
LAPACK Users' Guide .
- auxiliary routines are all the other subroutines called
by the driver routines and computational routines.
The auxiliary routines are listed in Appendix B and
the LAPACK Users' Guide .