X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Finifcns_nstdsums.cpp;h=62c6c62f2737cf6b87a34db73bc51060103c1ff5;hp=975a81e685ddb18863f4ce6f0625455aef0d36b4;hb=97ef604e;hpb=6304288112f2418a2f0a14076363646ec3ce2fa3

diff --git a/ginac/inifcns_nstdsums.cpp b/ginac/inifcns_nstdsums.cpp
index 975a81e6..62c6c62f 100644
--- a/ginac/inifcns_nstdsums.cpp
+++ b/ginac/inifcns_nstdsums.cpp
@@ -1136,6 +1136,7 @@ G_numeric(const std::vector<cln::cl_N>& x, const std::vector<int>& s,
 	// check for convergence and necessary accelerations
 	bool need_trafo = false;
 	bool need_hoelder = false;
+	bool have_trailing_zero = false;
 	std::size_t depth = 0;
 	for (std::size_t i = 0; i < x.size(); ++i) {
 		if (!zerop(x[i])) {
@@ -1149,14 +1150,16 @@ G_numeric(const std::vector<cln::cl_N>& x, const std::vector<int>& s,
 				need_hoelder = true;
 		}
 	}
-	if (zerop(x[x.size() - 1]))
+	if (zerop(x[x.size() - 1])) {
+		have_trailing_zero = true;
 		need_trafo = true;
+	}
 
 	if (depth == 1 && x.size() == 2 && !need_trafo)
 		return - Li_projection(2, y/x[1], cln::float_format(Digits));
 	
 	// do acceleration transformation (hoelder convolution [BBB])
-	if (need_hoelder)
+	if (need_hoelder && !have_trailing_zero)
 		return G_do_hoelder(x, s, y);
 	
 	// convergence transformation