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<!DOCTYPE MAN SYSTEM "../../manrev.dtd">
<MAN>
  <LANGUAGE>eng</LANGUAGE>
  <TITLE>lincos</TITLE>
  <TYPE>Scilab Function  </TYPE>
  <DATE>14-Apr-2005</DATE>
  <SHORT_DESCRIPTION name="lincos">  Constructs by linearization a
  linear state-space model from a general dynamical system described
  by a scicos diagram
  </SHORT_DESCRIPTION> 

  <CALLING_SEQUENCE>
  <CALLING_SEQUENCE_ITEM>sys= lincos(scs_m [,x0,u0 [,param] ])</CALLING_SEQUENCE_ITEM>
  </CALLING_SEQUENCE>

  <PARAM>
  <PARAM_INDENT>

    <PARAM_ITEM>
    <PARAM_NAME>scs_m</PARAM_NAME>
    <PARAM_DESCRIPTION>
       <SP>
       : a Scicos data structure
       </SP>
    </PARAM_DESCRIPTION>
    </PARAM_ITEM>

    <PARAM_ITEM>
    <PARAM_NAME>x0</PARAM_NAME>
    <PARAM_DESCRIPTION>
       <SP>
       : column vector. Continuous state around which linearization to be done (default 0)
       </SP>
    </PARAM_DESCRIPTION>
    </PARAM_ITEM>

    <PARAM_ITEM>
    <PARAM_NAME>u0</PARAM_NAME>
    <PARAM_DESCRIPTION>
       <SP>
       : column vector. Input around which linearization to be done (default 0)
       </SP>
    </PARAM_DESCRIPTION>
    </PARAM_ITEM>

    <PARAM_ITEM>
    <PARAM_NAME>param</PARAM_NAME>
    <PARAM_DESCRIPTION>
       <SP>
       : param: list with two elements (default list(1.d-6,0))
   param(1): scalar. Perturbation level for linearization; the following variation is used
             del([x;u])_i = param(1)+param(1)*1d-4*abs([x;u])_i.
   param(2): scalar. Time t.
       </SP>
    </PARAM_DESCRIPTION>
    </PARAM_ITEM>

    <PARAM_ITEM>
    <PARAM_NAME>sys</PARAM_NAME>
    <PARAM_DESCRIPTION>
       <SP>
       : state-space system
       </SP>
    </PARAM_DESCRIPTION>
    </PARAM_ITEM>
  </PARAM_INDENT>
  </PARAM>
 
  <DESCRIPTION>
     <DESCRIPTION_INDENT>
     <DESCRIPTION_ITEM>
     <P>
      Construct a linear state-space system by linearizing a model
      given as a Scicos diagram.
     </P>
     </DESCRIPTION_ITEM>
     <DESCRIPTION_ITEM>
     <P>
      The output is a Scilab data structure of type continuous-time state-space linear system.
     </P>
     </DESCRIPTION_ITEM>
     </DESCRIPTION_INDENT>
  </DESCRIPTION>

 

  <SEE_ALSO>
    <SEE_ALSO_ITEM> <LINK> steadycos</LINK> </SEE_ALSO_ITEM>
    <SEE_ALSO_ITEM> <LINK> scicos_simulate</LINK> </SEE_ALSO_ITEM>
  </SEE_ALSO>

  <AUTHORS>
    <AUTHORS_ITEM label='Ramine Nikoukhah'>
    </AUTHORS_ITEM>
  </AUTHORS>

</MAN>
