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

Da cppreference.com.
< cpp‎ | numeric‎ | complex

 
 
Numeri libreria
Comuni funzioni matematiche
Virgola mobile ambiente
I numeri complessi
Array numerici
Pseudo-casuale generazione
In fase di compilazione aritmetica razionale (C++11)
Generici operazioni numeriche
Original:
Generic numeric operations
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
I numeri complessi
Membri funzioni
Original:
Member functions
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complex::complex
complex::operator=
complex::real
complex::imag
complex::operator+=
complex::operator-=
complex::operator*=
complex::operator/=
Non membri funzioni
Original:
Non-member functions
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operator==
operator!=
operator<<
operator>>
real
imag
abs
arg
norm
conj
proj(C++11)
polar
Funzioni esponenziali
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Exponential functions
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exp
log
log10
Funzioni di risparmio energia
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Power functions
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pow
sqrt
Funzioni trigonometriche
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Trigonometric functions
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asin(C++11)
acos(C++11)
atan(C++11)
Funzioni iperboliche
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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)
Implementa gli operatori binari per l'aritmetica complessa e per complesso misto / scalare aritmetica. Gli scalari sono trattati come numeri complessi con parte reale uguale all'argomento e la parte immaginaria impostato a zero.
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)
Restituisce la somma dei suoi argomenti
Original:
Returns the sum of its arguments
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4-6)
Restituisce il risultato della sottrazione rhs da lhs
Original:
Returns the result of subtracting rhs from lhs
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7-9)
Moltiplica i suoi argomenti
Original:
Multiplies its arguments
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10-12)
Divide lhs da rhs
Original:
Divides lhs by rhs
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Indice

[modifica] Parametri

lhs, rhs -
gli argomenti: o entrambi i numeri complessi o di un complesso e uno scalare di tipo di corrispondenza (float, double, long double)
Original:
the arguments: either both complex numbers or one complex and one scalar of matching type (float, double, long double)
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[modifica] Valore di ritorno

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

[modifica] Esempio

#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
}

Output:

(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)

[modifica] Vedi anche

assegnazione composta di due numeri complessi o un complesso e uno scalare
Original:
compound assignment of two complex numbers or a complex and a scalar
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(membro pubblico funzione) [edit]
si applica operatori unari ai numeri complessi
Original:
applies unary operators to complex numbers
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(funzione di modello) [edit]