--- branches/development/src/math/SquareMatrix3.hpp	2011/08/03 20:20:37	1600
+++ branches/development/src/math/SquareMatrix3.hpp	2012/07/06 22:01:58	1767
@@ -36,7 +36,8 @@
  * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).             
  * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).          
  * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).          
- * [4]  Vardeman & Gezelter, in progress (2009).                        
+ * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010).
+ * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
  */
  
 /**
@@ -47,6 +48,8 @@
  */
 #ifndef MATH_SQUAREMATRIX3_HPP
 #define  MATH_SQUAREMATRIX3_HPP
+#include "config.h"
+#include <cmath>
 #include <vector>
 #include "Quaternion.hpp"
 #include "SquareMatrix.hpp"
@@ -109,6 +112,7 @@ namespace OpenMD {
       return *this;
     }
 
+    
     /**
      * Sets this matrix to a rotation matrix by three euler angles
      * @ param euler
@@ -187,7 +191,6 @@ namespace OpenMD {
     }
 
 
-
     /**
      * Returns the quaternion from this rotation matrix
      * @return the quaternion from this rotation matrix