:py:mod:`dysys.controltf`
=========================

.. py:module:: dysys.controltf


Module Contents
---------------

Classes
~~~~~~~

.. autoapisummary::

   dysys.controltf.TransferFunction



Functions
~~~~~~~~~

.. autoapisummary::

   dysys.controltf.tf



.. py:class:: TransferFunction


   Bases: :py:obj:`control.TransferFunction`

   Subclass of control.TransferFunction with extra methods

   .. py:method:: pop_conjugate(root, roots)

      Pop the conjugate of a root in roots list

      Finds the closest root in roots to the complex conjugate of root.
      Uses the "closest" metric of the Euclidean distance.


   .. py:method:: poly_factors_canonical(p)

      Returns polynomial factors in canonical form


   .. py:method:: factor_canonical(check=False)

      Returns a list of transfer functions in canonical form, the product of which equals self.



.. py:function:: tf(*args, **kwargs)

   Create a TransferFunction object