NumCpp  2.10.1
A Templatized Header Only C++ Implementation of the Python NumPy Library
laguerre.hpp
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1 #pragma once
29 
30 #include <cmath>
31 
32 #if defined(__cpp_lib_math_special_functions) || !defined(NUMCPP_NO_USE_BOOST)
33 
36 #include "NumCpp/NdArray.hpp"
37 
38 #ifndef __cpp_lib_math_special_functions
39 #include "boost/math/special_functions/laguerre.hpp"
40 #endif
41 
42 namespace nc::polynomial
43 {
44  //============================================================================
45  // Method Description:
54  template<typename dtype>
55  double laguerre(uint32 n, dtype x)
56  {
58 
59 #ifdef __cpp_lib_math_special_functions
60  return std::laguerre(n, static_cast<double>(x));
61 #else
62  return boost::math::laguerre(n, static_cast<double>(x));
63 #endif
64  }
65 
66  //============================================================================
67  // Method Description:
77  template<typename dtype>
78  double laguerre(uint32 n, uint32 m, dtype x)
79  {
81 
82 #ifdef __cpp_lib_math_special_functions
83  return std::assoc_laguerre(m, n, static_cast<double>(x));
84 #else
85  return boost::math::laguerre(m, n, static_cast<double>(x));
86 #endif
87  }
88 
89  //============================================================================
90  // Method Description:
99  template<typename dtype>
101  {
102  NdArray<double> returnArray(inArrayX.shape());
103 
104  const auto function = [n](dtype x) -> double { return laguerre(n, x); };
105 
106  stl_algorithms::transform(inArrayX.cbegin(), inArrayX.cend(), returnArray.begin(), function);
107 
108  return returnArray;
109  }
110 
111  //============================================================================
112  // Method Description:
122  template<typename dtype>
124  {
125  NdArray<double> returnArray(inArrayX.shape());
126 
127  const auto function = [n, m](dtype x) -> double { return laguerre(n, m, x); };
128 
129  stl_algorithms::transform(inArrayX.cbegin(), inArrayX.cend(), returnArray.begin(), function);
130 
131  return returnArray;
132  }
133 } // namespace nc::polynomial
134 
135 #endif // #if defined(__cpp_lib_math_special_functions) || !defined(NUMCPP_NO_USE_BOOST)
#define STATIC_ASSERT_ARITHMETIC(dtype)
Definition: StaticAsserts.hpp:39
const_iterator cbegin() const noexcept
Definition: NdArrayCore.hpp:1308
Shape shape() const noexcept
Definition: NdArrayCore.hpp:4402
const_iterator cend() const noexcept
Definition: NdArrayCore.hpp:1616
iterator begin() noexcept
Definition: NdArrayCore.hpp:1258
Definition: chebyshev_t.hpp:39
NdArray< double > laguerre(uint32 n, uint32 m, const NdArray< dtype > &inArrayX)
Definition: laguerre.hpp:123
double laguerre(uint32 n, dtype x)
Definition: laguerre.hpp:55
OutputIt transform(InputIt first, InputIt last, OutputIt destination, UnaryOperation unaryFunction)
Definition: StlAlgorithms.hpp:775
std::uint32_t uint32
Definition: Types.hpp:40