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		<title>imported&gt;Jlwoodwa: wpbs class</title>
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==Untitled==&lt;br /&gt;
I&amp;#039;ve written the definition; this article needs far more work.  -- Mike Hardy &amp;lt;!-- Template:Unsigned IP --&amp;gt;&amp;lt;small class=&amp;quot;autosigned&amp;quot;&amp;gt;—&amp;amp;nbsp;Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/131.183.81.100|131.183.81.100]] ([[User talk:131.183.81.100#top|talk]]) 21:50, 30 November 2002 (UTC)&amp;lt;/small&amp;gt;&amp;lt;!-- Template:Xsign --&amp;gt;&lt;br /&gt;
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Should we set [[characteristic function]] to be primarily the generating function of probability theory (currently the second definition), and make [[indicator function]] the &amp;quot;characteristic function&amp;quot; of a set (currently the first definition)?  Which usage is the most frequent for the first definition from the article?  (I am more familiar with &amp;quot;indicator function&amp;quot;.)&lt;br /&gt;
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I&amp;#039;d like to extend both definitions, but have much more to add to the probability theory version!  Can anyone advise on appropriate disambiguation in this case?&lt;br /&gt;
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--[[User:Bjcairns|Ben Cairns]] 11:36 1 Jun 2003 (UTC)&lt;br /&gt;
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It makes sense to use &amp;quot;indicator function&amp;quot; for the indicator function, since that term is unambiguous, while &amp;quot;characteristic function&amp;quot; is not. [[User:AxelBoldt|AxelBoldt]] 03:45 14 Jun 2003 (UTC)&lt;br /&gt;
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== &amp;quot;nothing to do with topology&amp;quot; ==&lt;br /&gt;
The first definition of characteristic function has absolutely nothing to do with topology; it is used throughout math.  I think I&amp;#039;ll replace that entire line with just a reference to [[indicator function]].--[[User:70.253.191.31|70.253.191.31]] 02:45, 29 June 2006 (UTC)&lt;br /&gt;
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: You are right that the indicator function is not just used in topology. However we can still say what the indicator function is. I&amp;#039;ve put back the definition. [[User:Paul August|Paul August]] [[User_talk:Paul August|&amp;amp;#9742;]] 03:57, 29 June 2006 (UTC)&lt;/div&gt;</summary>
		<author><name>imported&gt;Jlwoodwa</name></author>
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