Log. integral

Henri . Cohen on Wed, 26 Apr 2006 11:48:50 +0200

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Log. integral

To: pari-users@list.cr.yp.to
Subject: Log. integral
From: Henri.Cohen@math.u-bordeaux1.fr
Date: Tue, 25 Apr 2006 23:33:17 +0200
Delivery-date: Wed, 26 Apr 2006 11:48:50 +0200
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I am not sure this answers Bill Purvis's question but for $x$ not too large
you have the convergent series
$$\Li(x)=\gamma+\log(\log(x))+\sum_{n\ge1}\log(x)^n/(n.n!)$$

H. C.

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