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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Definido no cabeçalho `<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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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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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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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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Parâmetros

x, y	-	matrizes numéricas para calcular a tangente inversa do Original: numeric arrays to compute inverse tangent of The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
vy, vx	-	para calcular os valores de tangente inversa Original: values to compute inverse tangent of The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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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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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Exemplo

Veja também


	arco tangente, usando sinais para determinar quadrantes Original: arc tangent, using signs to determine quadrants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função) [edit]

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