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<?xml version="1.0" encoding="UTF-8"?>
<!--
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) INRIA
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
*
-->
<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" version="5.0-subset Scilab" xml:lang="en" xml:id="paramfplot2d">
<info>
<pubdate>$LastChangedDate$</pubdate>
</info>
<refnamediv>
<refname>paramfplot2d</refname>
<refpurpose> animated 2D plot, curve defined by a function</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>paramfplot2d(f,x,theta)
paramfplot2d(f,x,theta,flag)
paramfplot2d(f,x,theta,flagrect)</synopsis>
</refsynopsisdiv>
<refsection>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term>x</term>
<listitem>
<para>real vector.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>f</term>
<listitem>
<para>function <literal>y=f(x,t)</literal> . f is a Scilab function or a dynamically linked routine (referred to as a string).</para>
</listitem>
</varlistentry>
<varlistentry>
<term>theta</term>
<listitem>
<para>real vector (set of parameters).</para>
</listitem>
</varlistentry>
<varlistentry>
<term>flag</term>
<listitem>
<para>string <literal>'no'</literal> or <literal>'yes'</literal>: If "yes" screen is cleared between two consecutive plots.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>rect</term>
<listitem>
<para>"rectangle" [xmin, xmax, ymin, ymax] (1 x 4 real vector),</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para>
Animated plot of the function x-->f(x,t) for t=theta(1),theta(2),etc.
f can be a either Scilab function or a dynamically linked routine since
y=f(x,t) is evaluated as y=feval(x(:),t,f). See feval.
f: mapping x,t -> f(x,t) = <literal>R^N</literal> valued function for x= vector of <literal>R^N</literal>
and t=real number. x is a N-vector of x-values and for each t in theta, f(x,t)=N-vector of y-values.</para>
</refsection>
<refsection>
<title>Examples</title>
<programlisting role="example"><![CDATA[
deff('y=f(x,t)','y=t*sin(x)')
x=linspace(0,2*%pi,50);theta=0:0.05:1;
paramfplot2d(f,x,theta);
]]></programlisting>
</refsection>
<refsection>
<title>See Also</title>
<simplelist type="inline">
<member>
<link linkend="plot2d">plot2d</link>
</member>
<member>
<link linkend="feval">feval</link>
</member>
<member>
<link linkend="fplot2d">fplot2d</link>
</member>
</simplelist>
</refsection>
</refentry>
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