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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> cppreference.com
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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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    <metanoindex/>

     
    C++
     
    Bibliothque Numerics
    Fonctions mathmatiques courantes
    Virgule flottante environnement
    Nombres complexes
    Tableaux numriques
    La gnration de nombres pseudo-alatoires
    Moment de la compilation arithmtique rationnelle (C++11)
    Gnriques des oprations numriques
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    Generic numeric operations
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    iota (C++11)
    accumulate
    inner_product
    adjacent_difference
    partial_sum
     
    std::valarray
    Les fonctions membres
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    Member functions
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    Tiers fonctions
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    Non-member functions
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    Classes d'aide
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    Helper classes
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    <tbody> </tbody>
    Dclar dans l'en-tte <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)
    Calcule la tangente inverse de y/x en utilisant les signes d'arguments pour dterminer correctement le quadrant .
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    Computes the inverse tangent of y/x using the signs of arguments to correctly determine quadrant.
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    1)
    Calcule la tangente inverse de chaque paire de valeurs correspondantes de y et x .
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    Computes the inverse tangent of each pair of corresponding values from y and x.
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    Le comportement est indfini si x.size() != y.size() .
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    The behavior is undefined if x.size() != y.size().
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    2)
    Calcule la tangente inverse de vx et chaque valeur de la y tableau numrique .
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    Computes the inverse tangent of vx and each value in the numeric array y.
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    3)
    Calcule la tangente inverse de vy et chaque valeur de la x tableau numrique .
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    Computes the inverse tangent of vy and each value in the numeric array x.
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    Paramtres

    x, y -
    tableaux numriques pour calculer la tangente inverse d'
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    numeric arrays to compute inverse tangent of
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    vy, vx -
    pour calculer les valeurs de tangente inverse
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    values to compute inverse tangent of
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    Retourne la valeur

    Un tableau numrique contenant les rsultats du calcul de la tangente inverse .
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    A numeric array containing the results of computation of inverse tangent.
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    Notes

    Fonction sans rserve (atan2) est utilis pour effectuer le calcul. Si cette fonction n'est pas disponible, std::atan2 est utilis en raison de l'argument de recherche sous la g .
    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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    La fonction peut tre mise en uvre avec le type de retour diffrent de std::valarray. Dans ce cas, le type de remplacement a les proprits suivantes:
    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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    • Toutes les fonctions de membre de const std::valarray sont fournis .
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      All const member functions of std::valarray are provided.
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    • std::valarray, std::slice_array, std::gslice_array, std::mask_array et std::indirect_array peut tre construit partir du type de remplacement .
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      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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    • Toutes les fonctions acceptant un argument de type de const std::valarray& devrait galement accepter le type de remplacement .
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      All functions accepting a arguments of type const std::valarray& should also accept the replacement type.
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    • Toutes les fonctions qui acceptent deux arguments de type de const std::valarray& devrait accepter toutes les combinaisons de const std::valarray& et le type de remplacement .
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      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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    Exemple

    This section is incomplete
    Reason: no example

    Voir aussi
    arc tangente, en utilisant des signes pour dterminer quadrants
    Original:
    arc tangent, using signs to determine quadrants
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