title: Struts2 tag with Math functions
body: <p>I use struts2 and want to use Math.max method in struts tag .
  Like this : </p>
  
  <pre><code>&lt;s:property value="%{Math.max( 1 , 5 ) }" /&gt;
  </code></pre>
  
  <p>Or :</p>
  
  <pre><code>&lt;s:set var="pfrom" value="%{Math.max( 1 , page - 5 )}" /&gt; 
  </code></pre>
  
  <p>but this codes not work . </p>