   <span class="keywordflow">if</span>(nal1 &lt;=0 || nal2 &lt;= 0){
<a name="l00294"></a>00294                 <span class="keywordflow">return</span> 0.0 ;
<a name="l00295"></a>00295         }
<a name="l00296"></a>00296 
<a name="l00297"></a>00297         <span class="keywordflow">for</span>(i = 0 ; i &lt; nal1 ; i++) {
<a name="l00298"></a>00298                 <span class="keywordflow">for</span>(j = 0 ; j &lt; nal2 ; j++) {
<a name="l00299"></a>00299                         cural = al1[i] ;
<a name="l0