diff options
Diffstat (limited to 'Eigen/src/Core/GlobalFunctions.h')
-rw-r--r-- | Eigen/src/Core/GlobalFunctions.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Eigen/src/Core/GlobalFunctions.h b/Eigen/src/Core/GlobalFunctions.h index 396da8e71..7df0fdda9 100644 --- a/Eigen/src/Core/GlobalFunctions.h +++ b/Eigen/src/Core/GlobalFunctions.h @@ -129,6 +129,36 @@ namespace Eigen ); } + /** \returns an expression of the coefficient-wise igamma(\a a, \a x) to the given arrays. + * + * This function computes the coefficient-wise incomplete gamma function. + * + */ + template<typename Derived,typename ExponentDerived> + inline const Eigen::CwiseBinaryOp<Eigen::internal::scalar_igamma_op<typename Derived::Scalar>, const Derived, const ExponentDerived> + igamma(const Eigen::ArrayBase<Derived>& a, const Eigen::ArrayBase<ExponentDerived>& x) + { + return Eigen::CwiseBinaryOp<Eigen::internal::scalar_igamma_op<typename Derived::Scalar>, const Derived, const ExponentDerived>( + a.derived(), + x.derived() + ); + } + + /** \returns an expression of the coefficient-wise igammac(\a a, \a x) to the given arrays. + * + * This function computes the coefficient-wise complementary incomplete gamma function. + * + */ + template<typename Derived,typename ExponentDerived> + inline const Eigen::CwiseBinaryOp<Eigen::internal::scalar_igammac_op<typename Derived::Scalar>, const Derived, const ExponentDerived> + igammac(const Eigen::ArrayBase<Derived>& a, const Eigen::ArrayBase<ExponentDerived>& x) + { + return Eigen::CwiseBinaryOp<Eigen::internal::scalar_igammac_op<typename Derived::Scalar>, const Derived, const ExponentDerived>( + a.derived(), + x.derived() + ); + } + namespace internal { EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(real,scalar_real_op) |