typedef CwiseUnaryOp<internal::scalar_abs_op<Scalar>, const Derived> AbsReturnType;
typedef CwiseUnaryOp<internal::scalar_arg_op<Scalar>, const Derived> ArgReturnType;
typedef CwiseUnaryOp<internal::scalar_abs2_op<Scalar>, const Derived> Abs2ReturnType;
typedef CwiseUnaryOp<internal::scalar_sqrt_op<Scalar>, const Derived> SqrtReturnType;
typedef CwiseUnaryOp<internal::scalar_inverse_op<Scalar>, const Derived> InverseReturnType;
typedef CwiseUnaryOp<internal::scalar_boolean_not_op<Scalar>, const Derived> BooleanNotReturnType;

typedef CwiseUnaryOp<internal::scalar_exp_op<Scalar>, const Derived> ExpReturnType;
typedef CwiseUnaryOp<internal::scalar_log_op<Scalar>, const Derived> LogReturnType;
typedef CwiseUnaryOp<internal::scalar_log10_op<Scalar>, const Derived> Log10ReturnType;
typedef CwiseUnaryOp<internal::scalar_cos_op<Scalar>, const Derived> CosReturnType;
typedef CwiseUnaryOp<internal::scalar_sin_op<Scalar>, const Derived> SinReturnType;
typedef CwiseUnaryOp<internal::scalar_tan_op<Scalar>, const Derived> TanReturnType;
typedef CwiseUnaryOp<internal::scalar_acos_op<Scalar>, const Derived> AcosReturnType;
typedef CwiseUnaryOp<internal::scalar_asin_op<Scalar>, const Derived> AsinReturnType;
typedef CwiseUnaryOp<internal::scalar_atan_op<Scalar>, const Derived> AtanReturnType;
typedef CwiseUnaryOp<internal::scalar_tanh_op<Scalar>, const Derived> TanhReturnType;
typedef CwiseUnaryOp<internal::scalar_sinh_op<Scalar>, const Derived> SinhReturnType;
typedef CwiseUnaryOp<internal::scalar_cosh_op<Scalar>, const Derived> CoshReturnType;
typedef CwiseUnaryOp<internal::scalar_pow_op<Scalar>, const Derived> PowReturnType;
typedef CwiseUnaryOp<internal::scalar_square_op<Scalar>, const Derived> SquareReturnType;
typedef CwiseUnaryOp<internal::scalar_cube_op<Scalar>, const Derived> CubeReturnType;
typedef CwiseUnaryOp<internal::scalar_round_op<Scalar>, const Derived> RoundReturnType;
typedef CwiseUnaryOp<internal::scalar_floor_op<Scalar>, const Derived> FloorReturnType;
typedef CwiseUnaryOp<internal::scalar_ceil_op<Scalar>, const Derived> CeilReturnType;
typedef CwiseUnaryOp<internal::scalar_isNaN_op<Scalar>, const Derived> IsNaNReturnType;
typedef CwiseUnaryOp<internal::scalar_isInf_op<Scalar>, const Derived> IsInfReturnType;
typedef CwiseUnaryOp<internal::scalar_isFinite_op<Scalar>, const Derived> IsFiniteReturnType;

/** \returns an expression of the coefficient-wise absolute value of \c *this
  *
  * Example: \include Cwise_abs.cpp
  * Output: \verbinclude Cwise_abs.out
  *
  * \sa abs2()
  */
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE const AbsReturnType
abs() const
{
  return AbsReturnType(derived());
}

/** \returns an expression of the coefficient-wise phase angle of \c *this
  *
  * Example: \include Cwise_arg.cpp
  * Output: \verbinclude Cwise_arg.out
  *
  * \sa abs()
  */
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE const ArgReturnType
arg() const
{
  return ArgReturnType(derived());
}

/** \returns an expression of the coefficient-wise squared absolute value of \c *this
  *
  * Example: \include Cwise_abs2.cpp
  * Output: \verbinclude Cwise_abs2.out
  *
  * \sa abs(), square()
  */
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE const Abs2ReturnType
abs2() const
{
  return Abs2ReturnType(derived());
}

/** \returns an expression of the coefficient-wise exponential of *this.
  *
  * This function computes the coefficient-wise exponential. The function MatrixBase::exp() in the
  * unsupported module MatrixFunctions computes the matrix exponential.
  *
  * Example: \include Cwise_exp.cpp
  * Output: \verbinclude Cwise_exp.out
  *
  * \sa pow(), log(), sin(), cos()
  */
EIGEN_DEVICE_FUNC
inline const ExpReturnType
exp() const
{
  return ExpReturnType(derived());
}

/** \returns an expression of the coefficient-wise logarithm of *this.
  *
  * This function computes the coefficient-wise logarithm. The function MatrixBase::log() in the
  * unsupported module MatrixFunctions computes the matrix logarithm.
  *
  * Example: \include Cwise_log.cpp
  * Output: \verbinclude Cwise_log.out
  *
  * \sa exp()
  */
EIGEN_DEVICE_FUNC
inline const LogReturnType
log() const
{
  return LogReturnType(derived());
}

/** \returns an expression of the coefficient-wise base-10 logarithm of *this.
  *
  * This function computes the coefficient-wise base-10 logarithm.
  *
  * Example: \include Cwise_log10.cpp
  * Output: \verbinclude Cwise_log10.out
  *
  * \sa log()
  */
EIGEN_DEVICE_FUNC
inline const Log10ReturnType
log10() const
{
  return Log10ReturnType(derived());
}

/** \returns an expression of the coefficient-wise square root of *this.
  *
  * This function computes the coefficient-wise square root. The function MatrixBase::sqrt() in the
  * unsupported module MatrixFunctions computes the matrix square root.
  *
  * Example: \include Cwise_sqrt.cpp
  * Output: \verbinclude Cwise_sqrt.out
  *
  * \sa pow(), square()
  */
EIGEN_DEVICE_FUNC
inline const SqrtReturnType
sqrt() const
{
  return SqrtReturnType(derived());
}

/** \returns an expression of the coefficient-wise cosine of *this.
  *
  * This function computes the coefficient-wise cosine. The function MatrixBase::cos() in the
  * unsupported module MatrixFunctions computes the matrix cosine.
  *
  * Example: \include Cwise_cos.cpp
  * Output: \verbinclude Cwise_cos.out
  *
  * \sa sin(), acos()
  */
EIGEN_DEVICE_FUNC
inline const CosReturnType
cos() const
{
  return CosReturnType(derived());
}


/** \returns an expression of the coefficient-wise sine of *this.
  *
  * This function computes the coefficient-wise sine. The function MatrixBase::sin() in the
  * unsupported module MatrixFunctions computes the matrix sine.
  *
  * Example: \include Cwise_sin.cpp
  * Output: \verbinclude Cwise_sin.out
  *
  * \sa cos(), asin()
  */
EIGEN_DEVICE_FUNC
inline const SinReturnType
sin() const
{
  return SinReturnType(derived());
}

/** \returns an expression of the coefficient-wise tan of *this.
  *
  * Example: \include Cwise_tan.cpp
  * Output: \verbinclude Cwise_tan.out
  *
  * \sa cos(), sin()
  */
EIGEN_DEVICE_FUNC
inline const TanReturnType
tan() const
{
  return TanReturnType(derived());
}

/** \returns an expression of the coefficient-wise arc tan of *this.
  *
  * Example: \include Cwise_atan.cpp
  * Output: \verbinclude Cwise_atan.out
  *
  * \sa tan(), asin(), acos()
  */
inline const AtanReturnType
atan() const
{
  return AtanReturnType(derived());
}

/** \returns an expression of the coefficient-wise arc cosine of *this.
  *
  * Example: \include Cwise_acos.cpp
  * Output: \verbinclude Cwise_acos.out
  *
  * \sa cos(), asin()
  */
EIGEN_DEVICE_FUNC
inline const AcosReturnType
acos() const
{
  return AcosReturnType(derived());
}

/** \returns an expression of the coefficient-wise arc sine of *this.
  *
  * Example: \include Cwise_asin.cpp
  * Output: \verbinclude Cwise_asin.out
  *
  * \sa sin(), acos()
  */
EIGEN_DEVICE_FUNC
inline const AsinReturnType
asin() const
{
  return AsinReturnType(derived());
}

/** \returns an expression of the coefficient-wise hyperbolic tan of *this.
  *
  * Example: \include Cwise_tanh.cpp
  * Output: \verbinclude Cwise_tanh.out
  *
  * \sa tan(), sinh(), cosh()
  */
inline const TanhReturnType
tanh() const
{
  return TanhReturnType(derived());
}

/** \returns an expression of the coefficient-wise hyperbolic sin of *this.
  *
  * Example: \include Cwise_sinh.cpp
  * Output: \verbinclude Cwise_sinh.out
  *
  * \sa sin(), tanh(), cosh()
  */
inline const SinhReturnType
sinh() const
{
  return SinhReturnType(derived());
}

/** \returns an expression of the coefficient-wise hyperbolic cos of *this.
  *
  * Example: \include Cwise_cosh.cpp
  * Output: \verbinclude Cwise_cosh.out
  *
  * \sa tan(), sinh(), cosh()
  */
inline const CoshReturnType
cosh() const
{
  return CoshReturnType(derived());
}

/** \returns an expression of the coefficient-wise power of *this to the given exponent.
  *
  * This function computes the coefficient-wise power. The function MatrixBase::pow() in the
  * unsupported module MatrixFunctions computes the matrix power.
  *
  * Example: \include Cwise_pow.cpp
  * Output: \verbinclude Cwise_pow.out
  *
  * \sa exp(), log()
  */
EIGEN_DEVICE_FUNC
inline const PowReturnType
pow(const Scalar& exponent) const
{
  return PowReturnType(derived(), internal::scalar_pow_op<Scalar>(exponent));
}


/** \returns an expression of the coefficient-wise inverse of *this.
  *
  * Example: \include Cwise_inverse.cpp
  * Output: \verbinclude Cwise_inverse.out
  *
  * \sa operator/(), operator*()
  */
EIGEN_DEVICE_FUNC
inline const InverseReturnType
inverse() const
{
  return InverseReturnType(derived());
}

/** \returns an expression of the coefficient-wise square of *this.
  *
  * Example: \include Cwise_square.cpp
  * Output: \verbinclude Cwise_square.out
  *
  * \sa operator/(), operator*(), abs2()
  */
EIGEN_DEVICE_FUNC
inline const SquareReturnType
square() const
{
  return SquareReturnType(derived());
}

/** \returns an expression of the coefficient-wise cube of *this.
  *
  * Example: \include Cwise_cube.cpp
  * Output: \verbinclude Cwise_cube.out
  *
  * \sa square(), pow()
  */
EIGEN_DEVICE_FUNC
inline const CubeReturnType
cube() const
{
  return CubeReturnType(derived());
}

/** \returns an expression of the coefficient-wise round of *this.
  *
  * Example: \include Cwise_round.cpp
  * Output: \verbinclude Cwise_round.out
  *
  * \sa ceil(), floor()
  */
inline const RoundReturnType
round() const
{
  return RoundReturnType(derived());
}

/** \returns an expression of the coefficient-wise floor of *this.
  *
  * Example: \include Cwise_floor.cpp
  * Output: \verbinclude Cwise_floor.out
  *
  * \sa ceil(), round()
  */
inline const FloorReturnType
floor() const
{
  return FloorReturnType(derived());
}

/** \returns an expression of the coefficient-wise ceil of *this.
  *
  * Example: \include Cwise_ceil.cpp
  * Output: \verbinclude Cwise_ceil.out
  *
  * \sa floor(), round()
  */
inline const CeilReturnType
ceil() const
{
  return CeilReturnType(derived());
}

/** \returns an expression of the coefficient-wise isNaN of *this.
  *
  * Example: \include Cwise_isNaN.cpp
  * Output: \verbinclude Cwise_isNaN.out
  *
  * \sa isFinite(), isInf()
  */
inline const IsNaNReturnType
isNaN() const
{
  return IsNaNReturnType(derived());
}

/** \returns an expression of the coefficient-wise isInf of *this.
  *
  * Example: \include Cwise_isInf.cpp
  * Output: \verbinclude Cwise_isInf.out
  *
  * \sa isNaN()
  */
inline const IsInfReturnType
isInf() const
{
  return IsInfReturnType(derived());
}

/** \returns an expression of the coefficient-wise isFinite of *this.
  *
  * Example: \include Cwise_isFinite.cpp
  * Output: \verbinclude Cwise_isFinite.out
  *
  * \sa isNaN()
  */
inline const IsFiniteReturnType
isFinite() const
{
  return IsFiniteReturnType(derived());
}

/** \returns an expression of the coefficient-wise ! operator of *this
  *
  * \warning this operator is for expression of bool only.
  *
  * Example: \include Cwise_boolean_not.cpp
  * Output: \verbinclude Cwise_boolean_not.out
  *
  * \sa operator!=()
  */
EIGEN_DEVICE_FUNC
inline const BooleanNotReturnType
operator!() const
{
  EIGEN_STATIC_ASSERT((internal::is_same<bool,Scalar>::value),
                      THIS_METHOD_IS_ONLY_FOR_EXPRESSIONS_OF_BOOL);
  return BooleanNotReturnType(derived());
}


#define EIGEN_MAKE_SCALAR_CWISE_UNARY_OP(METHOD_NAME,FUNCTOR) \
  EIGEN_DEVICE_FUNC \
  inline const CwiseUnaryOp<std::binder2nd<FUNCTOR<Scalar> >, const Derived> \
  METHOD_NAME(const Scalar& s) const { \
    return CwiseUnaryOp<std::binder2nd<FUNCTOR<Scalar> >, const Derived> \
            (derived(), std::bind2nd(FUNCTOR<Scalar>(), s)); \
  } \
  friend inline const CwiseUnaryOp<std::binder1st<FUNCTOR<Scalar> >, const Derived> \
  METHOD_NAME(const Scalar& s, const Derived& d) { \
	  return CwiseUnaryOp<std::binder1st<FUNCTOR<Scalar> >, const Derived> \
			  (d, std::bind1st(FUNCTOR<Scalar>(), s)); \
  }

EIGEN_MAKE_SCALAR_CWISE_UNARY_OP(operator==,  std::equal_to)
EIGEN_MAKE_SCALAR_CWISE_UNARY_OP(operator!=,  std::not_equal_to)
EIGEN_MAKE_SCALAR_CWISE_UNARY_OP(operator<,   std::less)
EIGEN_MAKE_SCALAR_CWISE_UNARY_OP(operator<=,  std::less_equal)
EIGEN_MAKE_SCALAR_CWISE_UNARY_OP(operator>,   std::greater)
EIGEN_MAKE_SCALAR_CWISE_UNARY_OP(operator>=,  std::greater_equal)