diff --git a/reference/math/functions/bindec.xml b/reference/math/functions/bindec.xml
index 6a58a7dd56..ac2c65e838 100644
--- a/reference/math/functions/bindec.xml
+++ b/reference/math/functions/bindec.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- splitted from ./en/functions/math.xml, last change in rev 1.2 -->
   <refentry id="function.bindec">
    <refnamediv>
@@ -14,7 +14,7 @@
      </methodsynopsis>
     <para>
      Returns the decimal equivalent of the binary number represented by
-     the binary_string argument.
+     the <parameter>binary_string</parameter> argument.
     </para>
     <para>
      <function>bindec</function> converts a binary number to an 
@@ -22,8 +22,7 @@
      31 bits of 1's or 2147483647 in decimal.
     </para>
     <para>
-     See also the <function>decbin</function>
-     function.
+     See also: <function>decbin</function>.
     </para>
    </refsect1>
   </refentry>
diff --git a/reference/math/functions/ceil.xml b/reference/math/functions/ceil.xml
index 193931fe0b..3eadc52d77 100644
--- a/reference/math/functions/ceil.xml
+++ b/reference/math/functions/ceil.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
 <!-- splitted from ./en/functions/math.xml, last change in rev 1.2 -->
   <refentry id="function.ceil">
    <refnamediv>
@@ -17,10 +17,10 @@
      <parameter>value</parameter> if necessary. 
      The return value of <function>ceil</function> is still of type
      <type>float</type> as the value range of <type>float</type> is 
-     usually bigger than that of <type>int</type>.
+     usually bigger than that of <type>integer</type>.
     </simpara>
     <example>
-     <title><function>ceil</function> examples</title>
+     <title><function>ceil</function> example</title>
      <programlisting role="php">
 <![CDATA[
 echo ceil(4.3);    // 5
diff --git a/reference/math/functions/cos.xml b/reference/math/functions/cos.xml
index b6deea7190..29ff7d218a 100644
--- a/reference/math/functions/cos.xml
+++ b/reference/math/functions/cos.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- splitted from ./en/functions/math.xml, last change in rev 1.2 -->
   <refentry id="function.cos">
    <refnamediv>
@@ -13,10 +13,12 @@
       <methodparam><type>float</type><parameter>arg</parameter></methodparam>
      </methodsynopsis>
     <para>
-     Returns the cosine of arg in radians.
+     <function>cos</function> returns the cosine of the <parameter>arg</parameter> 
+     parameter.  The <parameter>arg</parameter> parameter is in radians.
     </para>
     <para>
-     See also <function>sin</function> and <function>tan</function>.
+     See also <function>acos</function>, <function>sin</function>
+     <function>tan</function> and <function>deg2rad</function>.
     </para>
    </refsect1>
   </refentry>
diff --git a/reference/math/functions/decbin.xml b/reference/math/functions/decbin.xml
index cee98f61cb..c3e1356cef 100644
--- a/reference/math/functions/decbin.xml
+++ b/reference/math/functions/decbin.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- splitted from ./en/functions/math.xml, last change in rev 1.2 -->
   <refentry id="function.decbin">
    <refnamediv>
@@ -14,11 +14,11 @@
      </methodsynopsis>
     <para>
      Returns a string containing a binary representation of the given
-     number argument.  The largest number that can be converted is
+     <parameter>number</parameter> argument.  The largest number that can be converted is
      4294967295 in decimal resulting to a string of 32 1's.
     </para>
     <para>
-     See also the <function>bindec</function> function.
+     See also: <function>bindec</function>.
     </para>
    </refsect1>
   </refentry>
diff --git a/reference/math/functions/decoct.xml b/reference/math/functions/decoct.xml
index 23fbc6c0de..d47eef2fb2 100644
--- a/reference/math/functions/decoct.xml
+++ b/reference/math/functions/decoct.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- splitted from ./en/functions/math.xml, last change in rev 1.8 -->
   <refentry id="function.decoct">
    <refnamediv>
@@ -14,7 +14,7 @@
      </methodsynopsis>
     <para>
      Returns a string containing an octal representation of the given
-     number argument.  The largest number that can be converted is
+     <parameter>number</parameter> argument.  The largest number that can be converted is
      2147483647 in decimal resulting to "17777777777". 
     </para>
     <para>
diff --git a/reference/math/functions/floor.xml b/reference/math/functions/floor.xml
index f32f27b965..dbfd203cef 100644
--- a/reference/math/functions/floor.xml
+++ b/reference/math/functions/floor.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
 <!-- splitted from ./en/functions/math.xml, last change in rev 1.2 -->
   <refentry id="function.floor">
    <refnamediv>
@@ -17,10 +17,10 @@
      <parameter>value</parameter> if necessary. 
      The return value of <function>floor</function> is still of type
      <type>float</type> because the value range of <type>float</type> is 
-     usually bigger than that of <type>int</type>.
+     usually bigger than that of <type>integer</type>.
     </simpara>
     <example>
-     <title><function>floor</function> examples</title>
+     <title><function>floor</function> example</title>
      <programlisting role="php">
 <![CDATA[
 echo floor(4.3);   // 4
diff --git a/reference/math/functions/sin.xml b/reference/math/functions/sin.xml
index ed6de0918f..b92607e1ff 100644
--- a/reference/math/functions/sin.xml
+++ b/reference/math/functions/sin.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
 <!-- splitted from ./en/functions/math.xml, last change in rev 1.2 -->
   <refentry id="function.sin">
    <refnamediv>
@@ -32,8 +32,8 @@ print sin(60);           // -0.304810621 ...
      </informalexample>
     </para>
     <para>
-     See also <function>cos</function>, <function>tan</function> 
-     and <function>deg2rad</function>.
+     See also <function>asin</function>, <function>cos</function>,
+     <function>tan</function> and <function>deg2rad</function>.
     </para>
    </refsect1>
   </refentry>
diff --git a/reference/math/functions/tan.xml b/reference/math/functions/tan.xml
index 5cf9e393f3..dd3b986848 100644
--- a/reference/math/functions/tan.xml
+++ b/reference/math/functions/tan.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- splitted from ./en/functions/math.xml, last change in rev 1.57 -->
   <refentry id="function.tan">
    <refnamediv>
@@ -13,10 +13,12 @@
       <methodparam><type>float</type><parameter>arg</parameter></methodparam>
      </methodsynopsis>
     <para>
-     Returns the tangent of arg in radians.
+     <function>tan</function> returns the tangent of the <parameter>arg</parameter> 
+     parameter.  The <parameter>arg</parameter> parameter is in radians.
     </para>
     <para>
-     See also <function>sin</function> and <function>cos</function>.
+     See also <function>atan</function>, <function>sin</function>,
+     <function>cos</function> and <function>deg2rad</function>.
     </para>
    </refsect1>
   </refentry>
diff --git a/reference/math/reference.xml b/reference/math/reference.xml
index 856d9d5421..36274b4e9e 100644
--- a/reference/math/reference.xml
+++ b/reference/math/reference.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
  <reference id="ref.math">
   <title>Mathematical Functions</title>
   <titleabbrev>Math</titleabbrev>
   
   <partintro>
    <section id="math.intro">
-    <title>Introduction</title>
+    &reftitle.intro;
     <para>
      These math functions will only handle values within the range of
      the <type>integer</type> and <type>float</type> types on your computer.  
@@ -15,7 +15,7 @@
      linkend="ref.bc">arbitrary precision math functions</link>.
     </para>
     <section id="math.constants">
-     <title>Math constants</title>
+     &reftitle.constants;
      <para>
       The following values are defined as constants in PHP by the math
       extension: