From d3b48c7070f8b3a7e0851c5ed6d62e5d95472a0a Mon Sep 17 00:00:00 2001
From: Daniel Krenn <git@danielkrenn.at>
Date: Sun, 14 Feb 2016 12:16:41 +0100
Subject: [PATCH] Trac #20049: \zeta in GF in SingularityAnalysis-generator

---
 .../rings/asymptotic/asymptotic_expansion_generators.py   | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/sage/rings/asymptotic/asymptotic_expansion_generators.py b/src/sage/rings/asymptotic/asymptotic_expansion_generators.py
index 6ee34873396..a2345e02a6a 100644
--- a/src/sage/rings/asymptotic/asymptotic_expansion_generators.py
+++ b/src/sage/rings/asymptotic/asymptotic_expansion_generators.py
@@ -591,10 +591,10 @@ def SingularityAnalysis(var, zeta=1, alpha=0, beta=0, delta=0,
 
         .. MATH::
 
-            [z^n] \left(\frac{1}{1-z}\right)^\alpha
-            \left(\frac{1}{z} \log \frac{1}{1-z}\right)^\beta
-            \left(\frac{1}{z} \log
-            \left(\frac{1}{z} \log \frac{1}{1-z}\right)\right)^\delta.
+            [z^n] \left(\frac{1}{1-z/\zeta}\right)^\alpha
+            \left(\frac{1}{z/\zeta} \log \frac{1}{1-z/\zeta}\right)^\beta
+            \left(\frac{1}{z/\zeta} \log
+            \left(\frac{1}{z/\zeta} \log \frac{1}{1-z/\zeta}\right)\right)^\delta.
 
         INPUT: