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

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`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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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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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

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)

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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico) [modifica]

	si applica operatori unari ai numeri complessi Original: applies unary operators to complex numbers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello) [modifica]