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<?xml version="1.0" encoding="UTF-8"?>
<!--
*
* This help file was generated from idst1.sci using help_from_sci().
*
-->
<refentry version="5.0-subset Scilab" xml:id="idst1" xml:lang="en"
xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:ns3="http://www.w3.org/1999/xhtml"
xmlns:mml="http://www.w3.org/1998/Math/MathML"
xmlns:scilab="http://www.scilab.org"
xmlns:db="http://docbook.org/ns/docbook">
<refnamediv>
<refname>idst1</refname>
<refpurpose>This function computes the inverse type I discrete sine transform.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>
Y = idst(X)
Y = idst(X, N)
</synopsis>
</refsynopsisdiv>
<refsection>
<title>Parameters</title>
<variablelist>
<varlistentry><term>X:</term>
<listitem><para> Matrix or integer</para></listitem></varlistentry>
<varlistentry><term>N:</term>
<listitem><para> If N is given, then X is padded or trimmed to length N before computing the transform.</para></listitem></varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para>
This function computes the inverse type I discrete sine transform of Y. If N is given, then Y is padded or trimmed to length N before computing the transform. If Y is a matrix, compute the transform along the columns of the the matrix.
</para>
</refsection>
<refsection>
<title>Examples</title>
<programlisting role="example"><![CDATA[
idst([1,3,6])
ans =
3.97487 -2.50000 0.97487
]]></programlisting>
</refsection>
</refentry>
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