public T Subtract(T a, T b)
{
Operation.Calculation calculation = Expression.Subtract;
return(operation.Act <T>(a, b, calculation));
}
public T Multiply(T a, T b)
{
Operation.Calculation calculation = Expression.Multiply;
return(operation.Act <T>(a, b, calculation));
}
public T Divide(T a, T b)
{
Operation.Calculation calculation = Expression.Divide;
return(operation.Act <T>(a, b, calculation));
}
public T Sum(T a, T b)
{
Operation.Calculation calculation = Expression.Add;
return(operation.Act <T>(a, b, calculation));
}
