  The Descriptor System Tools (DSTOOLS) is a collection of MATLAB functions for
the operation on and manipulation of rational transfer function matrices via
their descriptor system realizations. The DSTOOLS collection relies on the
Control System Toolbox and several mex-functions based on the Systems and
Control Library SLICOT. Many of the implemented functions are based on the
computational procedures described in Chapter 10 of the book: "A. Varga,
Solving Fault Diagnosis Problems - Linear Synthesis Techniques, Springer,
2017". This document is the User's Guide for the version V0.71 of DSTOOLS.
First, we present the mathematical background on rational matrices and
descriptor systems. Then, we give in-depth information on the command syntax of
the main computational functions. Several examples illustrate the use of the
main functions of DSTOOLS.
