polygamma.hpp

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#pragma once
 
#ifndef NUMCPP_NO_USE_BOOST
 
#include "boost/math/special_functions/polygamma.hpp"
 
#include "NumCpp/Core/Internal/StaticAsserts.hpp"
#include "NumCpp/Core/Internal/StlAlgorithms.hpp"
#include "NumCpp/NdArray.hpp"
 
namespace nc::special
{
    //============================================================================
    // Method Description:
    template<typename dtype>
    auto polygamma(uint32 n, dtype inValue)
    {
        STATIC_ASSERT_ARITHMETIC(dtype);
 
        return boost::math::polygamma(n, inValue);
    }
    auto polygamma(uint32 n, dtype inValue) {…}
 
    //============================================================================
    // Method Description:
    template<typename dtype>
    auto polygamma(uint32 n, const NdArray<dtype>& inArray)
    {
        NdArray<decltype(polygamma(n, dtype{ 0 }))> returnArray(inArray.shape());
 
        stl_algorithms::transform(inArray.cbegin(),
                                  inArray.cend(),
                                  returnArray.begin(),
                                  [n](dtype inValue) -> auto { return polygamma(n, inValue); });
 
        return returnArray;
    }
    auto polygamma(uint32 n, const NdArray<dtype>& inArray) {…}
} // namespace nc::special
 
#endif // #ifndef NUMCPP_NO_USE_BOOST