Linear Time Invariant Systems
=============================

$\newcommand{\op}[1]{{\mathsf #1}}$

In this section we consider systems that take one input system $x(t)$
and produce one output signal $y(t)$. Furthermore we will consider
*linear time invariant* systems. Given an input signal $x$ the output
is $y=\op L x$.

   .. tikz:: A one input, one output shift invariant linear system.
	      
      \bXInput{A}
      \bXBloc[4]{B}{$\mathsf L$}{A}
      \bXLink[{$x(t)$}]{A}{B}
      \bXOutput[4]{C}{B}
      \bXLink[{$y(t)$}]{B}{C}

	  
.. toctree::
   :hidden:

   lin_properties
   lin_ti_convolution
   lin_eigenfunctions
   exercises