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std::atan2<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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< cpp‎ | numeric‎ | valarray

 
 
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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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
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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swap(C++11)
begin(C++11)
end(C++11)
abs
exp
log
log10
pow
sqrt
sin
cos
tan
asin
acos
atan
atan2
sinh
cosh
tanh
Classes auxiliares
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Helper classes
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Defined in header <valarray>
template< class T >
valarray<T> atan2( const valarray<T>& y, const valarray<T>& x );
(1)
template< class T >
valarray<T> atan2( const valarray<T>& y, const T& vx );
(2)
template< class T >
valarray<T> atan2( const T& vy, const valarray<T>& x );
(3)
Calcula a tangente inversa de y/x usando os sinais de argumentos para determinar corretamente quadrante.
Original:
Computes the inverse tangent of y/x using the signs of arguments to correctly determine quadrant.
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1)
Calcula a tangente inversa de cada par de valores correspondentes a partir y e x.
Original:
Computes the inverse tangent of each pair of corresponding values from y and x.
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O comportamento é indefinido se x.size() != y.size().
Original:
The behavior is undefined if x.size() != y.size().
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2)
Calcula a tangente inversa de vx e cada valor na y matriz numérica.
Original:
Computes the inverse tangent of vx and each value in the numeric array y.
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3)
Calcula a tangente inversa de vy e cada valor na x matriz numérica.
Original:
Computes the inverse tangent of vy and each value in the numeric array x.
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Índice

[editar] Parâmetros

x, y -
matrizes numéricas para calcular a tangente inversa do
Original:
numeric arrays to compute inverse tangent of
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vy, vx -
para calcular os valores de tangente inversa
Original:
values to compute inverse tangent of
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[editar] Valor de retorno

A matriz numérica com os resultados do cálculo da tangente inversa.
Original:
A numeric array containing the results of computation of inverse tangent.
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[editar] Notas

Qualificado de função (atan2) é usado para executar o cálculo. Se essa função não estiver disponível, std::atan2 é utilizado devido ao argumento de pesquisa dependente.
Original:
Unqualified function (atan2) is used to perform the computation. If such function is not available, std::atan2 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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[editar] Exemplo

[editar] Veja também

arco tangente, usando sinais para determinar quadrantes
Original:
arc tangent, using signs to determine quadrants
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(função) [edit]