# std::acos<div class="t-tr-text">(Std :: complexe)<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::complex)</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>

< cpp‎ | numeric‎ | complex

Bibliothèque Numerics
Fonctions mathématiques courantes
Virgule flottante environnement
Nombres complexes
Tableaux numériques
La génération de nombres pseudo-aléatoires
Moment de la compilation arithmétique rationnelle (C++11)
Génériques des opérations numériques
Original:
Generic numeric operations
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 iota (C++11)
 accumulate
 inner_product
 partial_sum

Nombres complexes
Les fonctions membres
Original:
Member functions
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 complex::complex
 complex::operator=
 complex::real
 complex::imag
 complex::operator+=complex::operator-=complex::operator*=complex::operator/=
Tiers fonctions
Original:
Non-member functions
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 operator==operator!=
 operator<>
 real
 imag
 abs
 arg
 norm
 conj
 proj (C++11)
 polar
Les fonctions exponentielles
Original:
Exponential functions
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 exp
 log
 log10
Les fonctions de puissance
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Power functions
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 pow
 sqrt
Les fonctions trigonométriques
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Trigonometric functions
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 sin
 cos
 tan
 asin (C++11)
 acos (C++11)
 atan (C++11)
Fonctions hyperboliques
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Hyperbolic functions
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 sinh
 cosh
 tanh
 asinh (C++11)
 acosh (C++11)
 atanh (C++11)

 Defined in header template< class T > complex acos( const complex& z ); (depuis C++11)
Calcule l'arc cosinus complexe d'un `z` valeur complexe. Direction de coupe existe en dehors de l'intervalle de [−1 ; +1] long de l'axe réel .
Original:
Computes complex arc cosine of a complex value `z`. Branch cut exists outside the interval [−1 ; +1] along the real axis.
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### [modifier]Paramètres

 z - valeur complexeOriginal: complex valueThe text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

### [modifier]Retourne la valeur

Complexe arc cosinus de `z` dans le [0 ; ∞) plage le long de l'axe réel et dans le [−iπ ; iπ] plage le long de l'axe imaginaire .
Original:
Complex arc cosine of `z` in the range [0 ; ∞) along the real axis and in the range [−iπ ; iπ] along the imaginary axis.
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### [modifier]Voir aussi

 asin(std::complex) (C++11) calcule arc sinus d'un nombre complexe (arcsin(z))Original: computes arc sine of a complex number (arcsin(z))The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction générique)  atan(std::complex) (C++11) calcule arc tangente d'un nombre complexe (arctan(z))Original: computes arc tangent of a complex number (arctan(z))The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction générique)