The Control and Systems
Library SLICOT
General information
The subroutine library SLICOT
provides Fortran 77 implementations of numerical algorithms for computations in
systems and control theory. Based on numerical linear algebra routines from BLAS
and LAPACK libraries, SLICOT provides methods for the design and analysis of
control systems. The basic ideas behind the library are:
1. usefulness of
algorithms;
2.
robustness: algorithms must
either return reliable results or an error or warning
indicator;
3.
numerical stability
and accuracy: the
results are as good as can be expected when working at a given precision. If
possible an estimate of the achieved accuracy should be given;
4. performance with
respect to speed and memory requirements. Although important because of ever increasing
complexity of control problems, this objective may never be met at cost of the
two previous ones;
5. portability and reusability: the library should be independent of
platforms;
6.
standardisation: the library is based on
rigorous programming and documentation standards;
7.
benchmarking, i.e., a standardised set of examples that allows
an evaluation of the performance of a method as well as the implementation
with respect to correctness, accuracy, and speed. Benchmarking gives also
insight in the behaviour of the method and its implementation in extreme
situations, i.e., for problems where the limit of the possible accuracy is
reached.
The current version of SLICOT consists of
about 400 user-callable and computational routines in various domains of systems
and control. Almost all of these routines have associated on-line documentation.
About 200 routines have associated example programs, data and results. New
routines are still in preparation. Due to the use of Fortran 77, reusability of
the software is obtained, so SLICOT can serve as the core for various existing
and future CACSD platforms and production quality software.
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