ass=keyword>end</span>
<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<br>
&nbsp;&nbsp;&nbsp;<span class=keyword>else</span>
<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class=comment>%&nbsp;finds&nbsp;out&nbsp;label&nbsp;for&nbsp;the&nbsp;interval&nbsp;[-inf,inf].
</span><br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;class=classify(0,p1,p2,m1,m2,c1,c2);
<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class=keyword>if</span>&nbsp;class&nbsp;==&nbsp;1,
<br>
&nbsp;&nbsp;&nbsp;&