--- trunk/src/math/SquareMatrix3.hpp	2014/05/31 21:00:46	1999
+++ trunk/src/math/SquareMatrix3.hpp	2014/05/31 22:35:05	2000
@@ -569,6 +569,9 @@ namespace OpenMD {
   typedef SquareMatrix3<RealType> Mat3x3d;
   typedef SquareMatrix3<RealType> RotMat3x3d;
 
+  const Mat3x3d M3Zero(0.0);
+
+
 } //namespace OpenMD
 #endif // MATH_SQUAREMATRIX_HPP