/Coefficient.cs/1.1/Sun Feb 23 02:46:43 2003//
/Coefficients.cs/1.1/Sun Feb 23 02:45:34 2003//
/Expression.cs/1.1/Sun Feb 23 08:38:13 2003//
/Node.cs/1.1/Sun Feb 23 13:14:32 2003//
/Operator.cs/1.1/Sun Feb 23 02:16:52 2003//
/Relation.cs/1.1/Sun Feb 23 04:40:24 2003//
D
