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<td width="173" valign="top" bgcolor="#DDDDDD"><p class="Normal"><a href="index.html">Home</a></p>
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<h1 class="Heading-1"> <font color="#0000A0">Floating Division</font></h1>
</div>
<div>
<p class="Normal"> By default, Python performs integer division with truncation,
so that 3/4 is 0, not 0.75. This is inconvenient when doing scientific computations,
and can lead to hard-to-find bugs in programs. You can write 3./4., which
is 0.75 by the rules of "floating-point" division. </p>
<p class="Normal">You can change the default so that
3/4 is treated as 0.75. Place this at the start of your program:<br />
</p>
<p class="program">from __future__ import division</p>
<p class="Normal">There are two underscores ("_" and "_")
before "future" and two after. </p>
<p class="Normal">The Visual module converts integers to floating-point numbers
for you when specifying attributes of objects:</p>
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<p class="Normal"> <span class="attribute"> object.pos
= (1,2,3)</span> is equivalent to <span class="attribute">object.pos = (1.,2.,3.) </span></p>
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