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 global tan function

Browse Source
This commit is contained in:
Gael Guennebaud
2011-02-03 14:45:21 +01:00
parent d028262e06
commit 2f71277105
3 changed files with 42 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
Eigen/src/Core/MathFunctions.h
View File

@@ -567,6 +567,44 @@ inline EIGEN_MATHFUNC_RETVAL(sin, Scalar) sin(const Scalar& x)
return EIGEN_MATHFUNC_IMPL(sin, Scalar)::run(x);
}
/****************************************************************************
* Implementation of tan *
****************************************************************************/
template<typename Scalar, bool IsInteger>
struct tan_default_impl
{
static inline Scalar run(const Scalar& x)
{
return std::tan(x);
}
};
template<typename Scalar>
struct tan_default_impl<Scalar, true>
{
static inline Scalar run(const Scalar&)
{
EIGEN_STATIC_ASSERT_NON_INTEGER(Scalar)
return Scalar(0);
}
};
template<typename Scalar>
struct tan_impl : tan_default_impl<Scalar, NumTraits<Scalar>::IsInteger> {};
template<typename Scalar>
struct tan_retval
{
typedef Scalar type;
};
template<typename Scalar>
inline EIGEN_MATHFUNC_RETVAL(tan, Scalar) tan(const Scalar& x)
{
return EIGEN_MATHFUNC_IMPL(tan, Scalar)::run(x);
}
/****************************************************************************
* Implementation of log *
****************************************************************************/