r="blue">
20+32   hour-1   hour*60+minute   minute/60   5**2   (5+9)*(15-7)
</font></pre><font color="black">The division operator might not do what you expect:
</font><pre><font size="4" color="blue">
&gt;&gt;&gt; minute = 59
&gt;&gt;&gt; minute/60
0
</font></pre><font color="black">The value of <tt>minute</tt> is 59, and in conventional arithmetic 59
divided by 60 is 0.98333, not 0. The reason for the discrepancy is
that Python is performing <b>floor division</b><sup><a name="text4" href="#note4">2</a></s