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      std::complex::operator+(binary), operator-(binary), operator*, operator/

      De cppreference.com
      < cpp‎ | numeric‎ | complex

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      C++
       
      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
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      Generic numeric operations
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      iota (C++11)
      accumulate
      inner_product
      adjacent_difference
      partial_sum
       
      Nombres complexes
      Les fonctions membres
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      Member functions
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      complex::complex
      complex::operator=
      complex::real
      complex::imag
      complex::operator+=
      complex::operator-=
      complex::operator*=
      complex::operator/=
      Tiers fonctions
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      Non-member functions
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      operator==
      operator!=
      operator<<
      operator>>
      real
      imag
      abs
      arg
      norm
      conj
      proj (C++11)
      polar
      Les fonctions exponentielles
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      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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      asin (C++11)
      acos (C++11)
      atan (C++11)
      Fonctions hyperboliques
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      Hyperbolic functions
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      asinh (C++11)
      acosh (C++11)
      atanh (C++11)
       
      template<class T >
      complex<T> operator+(const complex<T>& lhs, const complex<T>& rhs);
      		 (1)
      template<class T >
      complex<T> operator+(const complex<T>& lhs, const T& rhs);
      		 (2)
      template<class T >
      complex<T> operator+(const T& lhs, const complex<T>& rhs);
      		 (3)
      template<class T >
      complex<T> operator-(const complex<T>& lhs, const complex<T>& rhs);
      		 (4)
      template<class T >
      complex<T> operator-(const complex<T>& lhs, const T& rhs);
      		 (5)
      template<class T >
      complex<T> operator-(const T& lhs, const complex<T>& rhs);
      		 (6)
      template<class T >
      complex<T> operator*(const complex<T>& lhs, const complex<T>& rhs);
      		 (7)
      template<class T >
      complex<T> operator*(const complex<T>& lhs, const T& rhs);
      		 (8)
      template<class T >
      complex<T> operator*(const T& lhs, const complex<T>& rhs);
      		 (9)
      template<class T >
      complex<T> operator/(const complex<T>& lhs, const complex<T>& rhs);
      		 (10)
      template<class T >
      complex<T> operator/(const complex<T>& lhs, const T& rhs);
      		 (11)
      template<class T >
      complex<T> operator/(const T& lhs, const complex<T>& rhs);
      		 (12)
      Met en œuvre les opérateurs binaires pour l'arithmétique complexe et mixte complexe / scalaire arithmétique. Arguments scalaires sont traitées comme des nombres complexes avec la partie réelle égale à l'argument et la partie imaginaire à zéro .
      Original:
      Implements the binary operators for complex arithmetic and for mixed complex/scalar arithmetic. Scalar arguments are treated as complex numbers with the real part equal to the argument and the imaginary part set to zero.
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      1-3)
      Renvoie la somme de ses arguments
      Original:
      Returns the sum of its arguments
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      4-6)
      Retourne le résultat de la soustraction de rhslhs
      Original:
      Returns the result of subtracting rhs from lhs
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      7-9)
      Multiplie ses arguments
      Original:
      Multiplies its arguments
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      10-12)
      Divise par lhsrhs
      Original:
      Divides lhs by rhs
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      Sommaire

      [modifier]Paramètres

      lhs, rhs -
      les arguments: soit les deux nombres complexes ou d'un complexe et un scalaire de type correspondant (float, double, longdouble)
      Original:
      the arguments: either both complex numbers or one complex and one scalar of matching type (float, double, longdouble)
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      [modifier]Retourne la valeur

      1-3)complex<T>(lhs)+= rhs
      4-6)complex<T>(lhs)-= rhs
      7-9)complex<T>(lhs)*= rhs
      10-12)complex<T>(lhs)/= rhs

      [modifier]Exemple

      #include <iostream>#include <complex>int main(){std::complex<double> c2(2, 0);std::complex<double> ci(0, 1);   std::cout<< ci <<" + "<< c2 <<" = "<< ci+c2 <<'\n'<< ci <<" * "<< ci <<" = "<< ci*ci <<'\n'<< ci <<" + "<< c2 <<" / "<< ci <<" = "<< ci+c2/ci <<'\n'<<1<<" / "<< ci <<" = "<<1./ci <<'\n';   // std::cout << 1.f/ci; // compile error// std::cout << 1/ci; // compile error}

      Résultat : 

      (0,1) + (2,0) = (2,1) (0,1) * (0,1) = (-1,0) (0,1) + (2,0) / (0,1) = (0,-1) 1 / (0,1) = (0,-1)

      [modifier]Voir aussi

      assignation composée de deux nombres complexes ou un complexe et un scalaire
      Original:
      compound assignment of two complex numbers or a complex and a scalar
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      (fonction membre publique)[edit]
      s'applique opérateurs unaires aux nombres complexes
      Original:
      applies unary operators to complex numbers
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      (fonction générique)[edit]
      Récupérée de « https://fr.cppreference.com/mwiki/index.php?title=cpp/numeric/complex/operator_arith3&oldid=48789 »
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