NumCpp  2.5.1
A Templatized Header Only C++ Implementation of the Python NumPy Library
arctan2.hpp
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1 #pragma once
29 
33 #include "NumCpp/NdArray.hpp"
34 
35 #include <cmath>
36 #include <string>
37 
38 namespace nc
39 {
40  //============================================================================
41  // Method Description:
51  template<typename dtype>
52  auto arctan2(dtype inY, dtype inX) noexcept
53  {
55 
56  return std::atan2(inY, inX);
57  }
58 
59  //============================================================================
60  // Method Description:
70  template<typename dtype>
71  auto arctan2(const NdArray<dtype>& inY, const NdArray<dtype>& inX)
72  {
73  if (inX.shape() != inY.shape())
74  {
75  THROW_INVALID_ARGUMENT_ERROR("input array shapes are not consistant.");
76  }
77 
78  NdArray<decltype(arctan2(dtype{0}, dtype{0}))> returnArray(inY.shape());
79  stl_algorithms::transform(inY.cbegin(), inY.cend(), inX.cbegin(), returnArray.begin(),
80  [](dtype y, dtype x) noexcept -> auto
81  {
82  return arctan2(y, x);
83  });
84 
85  return returnArray;
86  }
87 } // namespace nc
#define THROW_INVALID_ARGUMENT_ERROR(msg)
Definition: Error.hpp:36
#define STATIC_ASSERT_ARITHMETIC(dtype)
Definition: StaticAsserts.hpp:37
Holds 1D and 2D arrays, the main work horse of the NumCpp library.
Definition: NdArrayCore.hpp:72
const_iterator cbegin() const noexcept
Definition: NdArrayCore.hpp:1270
Shape shape() const noexcept
Definition: NdArrayCore.hpp:4483
const_iterator cend() const noexcept
Definition: NdArrayCore.hpp:1614
iterator begin() noexcept
Definition: NdArrayCore.hpp:1214
OutputIt transform(InputIt first, InputIt last, OutputIt destination, UnaryOperation unaryFunction)
Definition: StlAlgorithms.hpp:702
Definition: Coordinate.hpp:45
auto arctan2(dtype inY, dtype inX) noexcept
Definition: arctan2.hpp:52