devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Add component-wise atan() function (see bug #80).

Browse Source
This commit is contained in:
Roger Martin
2014-06-19 14:55:14 +01:00
parent afb1a8c124
commit eb49100de9
5 changed files with 35 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
Eigen/src/Core/functors/UnaryFunctors.h
View File

@@ -320,6 +320,26 @@ struct functor_traits<scalar_asin_op<Scalar> >
};
};
/** \internal
* \brief Template functor to compute the atan of a scalar
* \sa class CwiseUnaryOp, ArrayBase::atan()
*/
template<typename Scalar> struct scalar_atan_op {
EIGEN_EMPTY_STRUCT_CTOR(scalar_atan_op)
inline const Scalar operator() (const Scalar& a) const { using std::atan; return atan(a); }
typedef typename packet_traits<Scalar>::type Packet;
inline Packet packetOp(const Packet& a) const { return internal::patan(a); }
};
template<typename Scalar>
struct functor_traits<scalar_atan_op<Scalar> >
{
enum {
Cost = 5 * NumTraits<Scalar>::MulCost,
PacketAccess = packet_traits<Scalar>::HasATan
};
};
/** \internal
* \brief Template functor to compute the inverse of a scalar
* \sa class CwiseUnaryOp, Cwise::inverse()