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what does the little comma mean if it comes before an exponent?

 Aug 28, 2014

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 #1
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It sounds like a typo to me, just a little error. I don't think that it would mean anything but would you like to give us an example of one such comma? 

 Aug 30, 2014
 #1
avatar+118723 
+5
Best Answer

It sounds like a typo to me, just a little error. I don't think that it would mean anything but would you like to give us an example of one such comma? 

Melody Aug 30, 2014

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