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 * This help file was generated from fftconv.sci using help_from_sci().
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  <refnamediv>
    <refname>fftconv</refname>
    <refpurpose>Convolve two vectors using the FFT for computation</refpurpose>
  </refnamediv>


<refsynopsisdiv>
   <title>Syntax</title>
   <synopsis>
   y = fftconv(X, Y)
   Y = fftconv(X, Y, n)
   
   </synopsis>
</refsynopsisdiv>

<refsection>
   <title>Parameters</title>
   <variablelist>
        <varlistentry>
            <term>x ,y :</term>
            <listitem><para> Input signal vectors.</para></listitem>
        </varlistentry>
        <varlistentry>
            <term>y:</term>
            <listitem><para> Convolution result.</para></listitem>
        </varlistentry>
   </variablelist>
</refsection>

<refsection>
   <title>Description</title>
   <para>
Convolve two vectors using the FFT for computation. c = fftconv (X, Y) returns a vector of length equal to 'length(X) + length (Y) - 1'.  If X and Y are the coefficient vectors of two polynomials, the returned value is the coefficient vector of the product polynomial.
If the optional argument n is specified, an N-point FFT is used.
   </para>
   <para>
</para>
</refsection>

<refsection>
   <title>Examples</title>
   <programlisting role="example"><![CDATA[
fftconv([1,2,3], [3,4,5])

   ]]></programlisting>
</refsection>

<refsection role="see also">
   <title>See also</title>
   <simplelist type="inline">
   <member><link linkend="fft">fft</link></member>
   </simplelist>
</refsection>

<refsection>
   <title>Authors</title>
   <simplelist type="vert">
   <member>Abinash Singh (abinashlalotra@gmail.com)</member>
   </simplelist>
</refsection>
</refentry>
