std::atan<div class="t-tr-text">(Std :: valarray)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::valarray)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div> - cppreference.com
Espaços nominais
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      std::atan<div class="t-tr-text">(Std :: valarray)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::valarray)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div>

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      <metanoindex/>

       
      C++
       
      Biblioteca numéricos
      Funções matemáticas comuns
      De ponto flutuante ambiente
      Números complexos
      Matrizes numéricas
      Pseudo-aleatório de geração de números
      Tempo de compilação aritmética racional (C++11)
      Genéricos operações numéricas
      Original:
      Generic numeric operations
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      (C++11)
       
      std::valarray
      Funções de membro
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      Member functions
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      Não-membros funções
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      Non-member functions
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      Classes auxiliares
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      Helper classes
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      <tbody> </tbody>
      Definido no cabeçalho <valarray>
      template< class T > valarray<T> atan( const valarray<T>& va );
      Para cada elemento em arco tangente va calcula o valor do elemento de.
      Original:
      For each element in va computes arc tangent of the value of the element.
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      Parâmetros

      va -
      matriz de valor para aplicar a operação a
      Original:
      value array to apply the operation to
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      Valor de retorno

      Matriz de valor contendo tangentes arco dos valores em va.
      Original:
      Value array containing arc tangents of the values in va.
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      Notas

      Qualificado de função (atan) é usado para executar o cálculo. Se essa função não estiver disponível, std::atan é utilizado devido ao argumento de pesquisa dependente.
      Original:
      Unqualified function (atan) is used to perform the computation. If such function is not available, std::atan is used due to argument dependent lookup.
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      A função pode ser implementada com o tipo de retorno diferente de std::valarray. Neste caso, o tipo de substituição tem as seguintes propriedades:
      Original:
      The function can be implemented with the return type different from std::valarray. In this case, the replacement type has the following properties:
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      • Todas as funções const membros std::valarray são fornecidos.
        Original:
        All const member functions of std::valarray are provided.
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      • std::valarray, std::slice_array, std::gslice_array, std::mask_array std::indirect_array e pode ser construído a partir do tipo de reposição.
        Original:
        std::valarray, std::slice_array, std::gslice_array, std::mask_array and std::indirect_array can be constructed from the replacement type.
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      • Todas as funções de aceitar um argumentos de const std::valarray& tipo devem também aceitar o tipo de substituição.
        Original:
        All functions accepting a arguments of type const std::valarray& should also accept the replacement type.
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      • Todas as funções que aceitam dois argumentos do tipo const std::valarray& deve aceitar todas as combinações de const std::valarray& e do tipo de substituição.
        Original:
        All functions accepting two arguments of type const std::valarray& should accept every combination of const std::valarray& and the replacement type.
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      Possível implementação

      template<class T>
valarray<T> atan(const valarray<T>& va)
{
    valarray<T> other = va;
    for (T &i : other) {
        i = atan(i);
    }
}

      Exemplo