X-Git-Url: https://www.fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=mtp_graph.h;h=0fad09dfb1c7e6f1897304e00d98b97bde23ee79;hb=598184c893e63ddd5b473aee104a9c2d1af07830;hp=ddf71622bec878921029f66509c60fb0261e1925;hpb=fda29b3422f4850d77e4b8f4916251509789d3ac;p=mtp.git

diff --git a/mtp_graph.h b/mtp_graph.h
index ddf7162..0fad09d 100644
--- a/mtp_graph.h
+++ b/mtp_graph.h
@@ -20,6 +20,7 @@
 #define MTP_GRAPH_H
 
 #include <iostream>
+#include <cmath>
 
 using namespace std;