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diff --git a/help/en_US/arithdeco.xml b/help/en_US/arithdeco.xml
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+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+ *
+ * This help file was generated from arithdeco.sci using help_from_sci().
+ *
+ -->
+
+<refentry version="5.0-subset Scilab" xml:id="arithdeco" 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>arithdeco</refname>
+    <refpurpose>This function decodes the given code using arithmetic coding</refpurpose>
+  </refnamediv>
+
+
+<refsynopsisdiv>
+   <title>Syntax</title>
+   <synopsis>
+   SEQ = ARITHDECO(CODE, COUNT, LEN)
+   
+   </synopsis>
+</refsynopsisdiv>
+
+<refsection>
+   <title>Description</title>
+   <para>
+SEQ = ARITHDECO(CODE, COUNT, LEN) decodes the given received seq (CODE) to message using arithmetic coding.
+COUNT is vector which gives information about the source statistics (i.e. frequency of each symbol in the source alphabet)
+CODE is the binary arithmetic code
+   </para>
+   <para>
+Source Alphabet is assumed to be {1,2,....N} where N is a positive integer
+Therefore, sequence should be finite and positive
+Length of the COUNT should match the length of the source alphabet
+   </para>
+   <para>
+</para>
+</refsection>
+
+<refsection>
+   <title>Examples</title>
+   <programlisting role="example"><![CDATA[
+counts = [40 1 9];
+len = 11;
+seq = [1 3 2 1 1 1 3 3 1 1 2 ]
+code = arithenco(seq,counts);
+disp(code)
+dseq=arithdeco(code,counts,len)
+disp(dseq)
+disp(seq)
+
+   ]]></programlisting>
+</refsection>
+
+<refsection>
+   <title>Authors</title>
+   <simplelist type="vert">
+   <member>Pola Lakshmi Priyanka, IIT Bombay</member>
+   </simplelist>
+</refsection>
+</refentry>