public abstract BooleanConst GreaterThan(DoubleConst b);
public abstract BooleanConst LessThan(DoubleConst b);
public abstract NumberConst Remainder(DoubleConst b);
public abstract BooleanConst EqualTo(DoubleConst b);
public abstract NumberConst ExactlyDivide(DoubleConst b);
public abstract NumberConst Divide(DoubleConst b);
public abstract NumberConst Multiply(DoubleConst b);
public abstract NumberConst Minus(DoubleConst b);
public abstract NumberConst Add(DoubleConst b);