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<H2><A NAME="SECTION004460000000000000000"></A><A NAME="imaginary"></A>
<BR>
2.4.6 Imaginary literals
</H2>

<P>
Imaginary literals are described by the following lexical definitions:

<P>
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    <td><a id='tok-imagnumber' xml:id='tok-imagnumber'>imagnumber</a></td>
    <td>::=</td>
    <td>(<a class='grammartoken' href="floating.html#tok-floatnumber">floatnumber</a> | <a class='grammartoken' href="floating.html#tok-intpart">intpart</a>) ("j" | "J")</td></tr>
</table>
</div>
<a class="grammar-footer"
  href="grammar.txt" type="text/plain"
  >Download entire grammar as text.</a>
</dd></dl>

<P>
An imaginary literal yields a complex number with a real part of
0.0.  Complex numbers are represented as a pair of floating point
numbers and have the same restrictions on their range.  To create a
complex number with a nonzero real part, add a floating point number
to it, e.g., <code>(3+4j)</code>.  Some examples of imaginary literals:

<P>
<div class="verbatim"><pre>
3.14j   10.j    10j     .001j   1e100j  3.14e-10j
</pre></div>

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<span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span>
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