diff --git a/gtsam/geometry/Point2.h b/gtsam/geometry/Point2.h
index cdb9f4480..d8b6daca8 100644
--- a/gtsam/geometry/Point2.h
+++ b/gtsam/geometry/Point2.h
@@ -71,6 +71,9 @@ GTSAM_EXPORT boost::optional<Point2> circleCircleIntersection(double R_d, double
  * @return list of solutions (0,1, or 2). Identical circles will return empty list, as well.
  */
 GTSAM_EXPORT std::list<Point2> circleCircleIntersection(Point2 c1, Point2 c2, boost::optional<Point2> fh);
+  
+/// Calculate the two means of a set of Point2 pairs
+GTSAM_EXPORT Point2Pair means(const std::vector<Point2Pair> &abPointPairs);
 
 /**
  * @brief Intersect 2 circles