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<title>2.4.6 Imaginary literals
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<H2><A NAME=
"SECTION004460000000000000000"></A><A NAME=
"imaginary"></A>
Imaginary literals are described by the following lexical definitions:
<div class=
"productions">
<td><a id='tok-imagnumber' xml:id='tok-imagnumber'
>imagnumber
</a></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>
<a class=
"grammar-footer"
href=
"grammar.txt" type=
"text/plain"
>Download entire grammar as text.
</a>
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:
<div class=
"verbatim"><pre>
3.14j
10.j
10j
.001j
1e100j
3.14e-10j
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<span class=
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2.4.2, documentation updated on
28 September
2005.
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