invsyslin
=========

system inversion



Calling Sequence
~~~~~~~~~~~~~~~~


::

    [sl2]=invsyslin(sl1)




Arguments
~~~~~~~~~

:sl1,sl2 `syslin` lists (linear systems in state space representation)
:



Description
~~~~~~~~~~~

Utility function. Computes the state form of the inverse `sl2` of the
linear system `sl1` (which is also given in state form).

The `D`-matrix is supposed to be full rank. Old stuff used by `inv(S)`
when `S` is a `syslin` list.



See Also
~~~~~~~~


+ `rowregul`_ removing poles and zeros at infinity
+ `inv`_ matrix inverse


.. _inv: inv.html
.. _rowregul: rowregul.html