SpecialFunctionsHalf.h
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1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // This Source Code Form is subject to the terms of the Mozilla
5 // Public License v. 2.0. If a copy of the MPL was not distributed
6 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
7 
8 #ifndef EIGEN_SPECIALFUNCTIONS_HALF_H
9 #define EIGEN_SPECIALFUNCTIONS_HALF_H
10 
11 // IWYU pragma: private
12 #include "./InternalHeaderCheck.h"
13 
14 namespace Eigen {
15 namespace numext {
16 
17 #if EIGEN_HAS_C99_MATH
18 template <>
20  return Eigen::half(Eigen::numext::lgamma(static_cast<float>(a)));
21 }
22 template <>
24  return Eigen::half(Eigen::numext::digamma(static_cast<float>(a)));
25 }
26 template <>
28  return Eigen::half(Eigen::numext::zeta(static_cast<float>(x), static_cast<float>(q)));
29 }
30 template <>
32  return Eigen::half(Eigen::numext::polygamma(static_cast<float>(n), static_cast<float>(x)));
33 }
34 template <>
36  return Eigen::half(Eigen::numext::erf(static_cast<float>(a)));
37 }
38 template <>
40  return Eigen::half(Eigen::numext::erfc(static_cast<float>(a)));
41 }
42 template <>
44  return Eigen::half(Eigen::numext::ndtri(static_cast<float>(a)));
45 }
46 template <>
48  return Eigen::half(Eigen::numext::igamma(static_cast<float>(a), static_cast<float>(x)));
49 }
50 template <>
52  return Eigen::half(Eigen::numext::igamma_der_a(static_cast<float>(a), static_cast<float>(x)));
53 }
54 template <>
56  const Eigen::half& sample) {
57  return Eigen::half(Eigen::numext::gamma_sample_der_alpha(static_cast<float>(alpha), static_cast<float>(sample)));
58 }
59 template <>
61  return Eigen::half(Eigen::numext::igammac(static_cast<float>(a), static_cast<float>(x)));
62 }
63 template <>
65  const Eigen::half& x) {
66  return Eigen::half(Eigen::numext::betainc(static_cast<float>(a), static_cast<float>(b), static_cast<float>(x)));
67 }
68 #endif
69 
70 } // end namespace numext
71 } // end namespace Eigen
72 
73 #endif // EIGEN_SPECIALFUNCTIONS_HALF_H
const unsigned n
Definition: CG3DPackingUnitTest.cpp:11
#define EIGEN_DEVICE_FUNC
Definition: Macros.h:892
#define EIGEN_STRONG_INLINE
Definition: Macros.h:834
RealScalar alpha
Definition: level1_cplx_impl.h:151
const Scalar * a
Definition: level2_cplx_impl.h:32
EIGEN_DEVICE_FUNC const Scalar & q
Definition: SpecialFunctionsImpl.h:2019
EIGEN_DEVICE_FUNC const Scalar & x
Definition: SpecialFunctionsImpl.h:2024
EIGEN_DEVICE_FUNC const Scalar & b
Definition: SpecialFunctionsImpl.h:2066
Namespace containing all symbols from the Eigen library.
Definition: bench_norm.cpp:70
EIGEN_STRONG_INLINE const Eigen::CwiseBinaryOp< Eigen::internal::scalar_zeta_op< typename DerivedX::Scalar >, const DerivedX, const DerivedQ > zeta(const Eigen::ArrayBase< DerivedX > &x, const Eigen::ArrayBase< DerivedQ > &q)
Definition: SpecialFunctionsArrayAPI.h:152
EIGEN_STRONG_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)
Definition: SpecialFunctionsArrayAPI.h:93
EIGEN_STRONG_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)
Definition: SpecialFunctionsArrayAPI.h:31
EIGEN_STRONG_INLINE const Eigen::CwiseBinaryOp< Eigen::internal::scalar_polygamma_op< typename DerivedX::Scalar >, const DerivedN, const DerivedX > polygamma(const Eigen::ArrayBase< DerivedN > &n, const Eigen::ArrayBase< DerivedX > &x)
Definition: SpecialFunctionsArrayAPI.h:113
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const TensorCwiseTernaryOp< internal::scalar_betainc_op< typename XDerived::Scalar >, const ADerived, const BDerived, const XDerived > betainc(const Eigen::TensorBase< ADerived, ReadOnlyAccessors > &a, const Eigen::TensorBase< BDerived, ReadOnlyAccessors > &b, const Eigen::TensorBase< XDerived, ReadOnlyAccessors > &x)
Definition: TensorGlobalFunctions.h:26
EIGEN_STRONG_INLINE const Eigen::CwiseBinaryOp< Eigen::internal::scalar_gamma_sample_der_alpha_op< typename AlphaDerived::Scalar >, const AlphaDerived, const SampleDerived > gamma_sample_der_alpha(const Eigen::ArrayBase< AlphaDerived > &alpha, const Eigen::ArrayBase< SampleDerived > &sample)
Definition: SpecialFunctionsArrayAPI.h:75
EIGEN_STRONG_INLINE const Eigen::CwiseBinaryOp< Eigen::internal::scalar_igamma_der_a_op< typename Derived::Scalar >, const Derived, const ExponentDerived > igamma_der_a(const Eigen::ArrayBase< Derived > &a, const Eigen::ArrayBase< ExponentDerived > &x)
Definition: SpecialFunctionsArrayAPI.h:52
Definition: Half.h:139