--- trunk/src/utils/NumericConstant.hpp	2005/01/12 22:41:40	246
+++ branches/development/src/utils/NumericConstant.hpp	2011/11/22 20:38:56	1665
@@ -1,4 +1,4 @@
- /*
+/*
  * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
  *
  * The University of Notre Dame grants you ("Licensee") a
@@ -6,19 +6,10 @@
  * redistribute this software in source and binary code form, provided
  * that the following conditions are met:
  *
- * 1. Acknowledgement of the program authors must be made in any
- *    publication of scientific results based in part on use of the
- *    program.  An acceptable form of acknowledgement is citation of
- *    the article in which the program was described (Matthew
- *    A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
- *    J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
- *    Parallel Simulation Engine for Molecular Dynamics,"
- *    J. Comput. Chem. 26, pp. 252-271 (2005))
- *
- * 2. Redistributions of source code must retain the above copyright
+ * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *
- * 3. Redistributions in binary form must reproduce the above copyright
+ * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the
  *    distribution.
@@ -37,32 +28,43 @@
  * arising out of the use of or inability to use software, even if the
  * University of Notre Dame has been advised of the possibility of
  * such damages.
+ *
+ * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your
+ * research, please cite the appropriate papers when you publish your
+ * work.  Good starting points are:
+ *                                                                      
+ * [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]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010).
+ * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
  */
  
- /**
-  * @file NumericConstant.hpp
-  * @author teng lin
-  * @date 11/17/2004
-  * @time 23:33am
-  * @version 1.0
-  */ 
+/**
+ * @file NumericConstant.hpp
+ * @author teng lin
+ * @date 11/17/2004
+ * @time 23:33am
+ * @version 1.0
+ */ 
 
 #ifndef UTILS_NUMERICCONSTANT_HPP
 #define UTILS_NUMERICCONSTANT_HPP
 #include <cmath>
-namespace oopse {
+#include <limits>
+namespace OpenMD {
 
-/**
- * @class NumericConstant NumericConstant.hpp "utils/NumericConstant.hpp"
- * @todo document
- */
-namespace NumericConstant {
+  /**
+   * @class NumericConstant NumericConstant.hpp "utils/NumericConstant.hpp"
+   * @todo document
+   */
+  namespace NumericConstant {
 
-    static const double epsilon = 0.000001;
-    static const double PI = M_PI;
-    static const double TWO_PI = 2.0 * PI;
-}
+    static const RealType epsilon = std::numeric_limits<RealType>::epsilon();
+    static const RealType PI = M_PI;
+    static const RealType TWO_PI = 2.0 * PI;
+  }
 
 
-} //end namespace oopse
+} //end namespace OpenMD
 #endif //UTILS_NUMERICCONSTANT_HPP