NumCpp  2.12.1
A Templatized Header Only C++ Implementation of the Python NumPy Library
hamming.hpp
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1
28#pragma once
29
30#include <cmath>
31
34#include "NumCpp/NdArray.hpp"
35
36namespace nc
37{
38 //============================================================================
39 // Method Description:
50 {
51 if (m < 1)
52 {
53 return {};
54 }
55
56 const auto mDouble = static_cast<double>(m);
57 const auto twoPiDivMMinus1 = (2. * constants::pi) / (mDouble - 1.);
58
59 NdArray<double> result(1, m);
60 int32 i = 0;
61 for (auto n : linspace(0., mDouble - 1., m, EndPoint::YES))
62 {
63 result[i++] = 0.54 - 0.46 * std::cos(twoPiDivMMinus1 * n);
64 }
65
66 return result;
67 }
68} // namespace nc
constexpr double pi
Pi.
Definition: Core/Constants.hpp:39
Definition: Cartesian.hpp:40
NdArray< dtype > linspace(dtype inStart, dtype inStop, uint32 inNum=50, EndPoint endPoint=EndPoint::YES)
Definition: linspace.hpp:61
auto cos(dtype inValue) noexcept
Definition: cos.hpp:49
NdArray< double > hamming(int32 m)
Definition: hamming.hpp:49
std::int32_t int32
Definition: Types.hpp:36