--- trunk/OOPSE/libmdtools/Utility.cpp	2004/02/07 00:16:47	1039
+++ trunk/OOPSE/libmdtools/Utility.cpp	2004/02/24 15:44:45	1064
@@ -24,3 +24,7 @@ double copysign(double sign, double value){
 
   return sign >= 0 ? result : -result;
 }
+
+double norm2(vector<double>& x){
+  return sqrt(dotProduct(x, x));
+}