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std::conj(std::complex)_C++中文网

定义于头文件 <complex>

(1)

template< class T >
std::complex<T> conj( const std::complex<T>& z );

 (C++20 前)

template< class T >
constexpr std::complex<T> conj( const std::complex<T>& z );

 (C++20 起)
(2)

std::complex<float> conj( float z );

template< class DoubleOrInteger >
std::complex<double> conj( DoubleOrInteger z );

std::complex<long double> conj( long double z );

 (C++11 起)
(C++20 前)

constexpr std::complex<float> conj( float z );

template< class DoubleOrInteger >
constexpr std::complex<double> conj( DoubleOrInteger z );

constexpr std::complex<long double> conj( long double z );

 (C++20 起)

1) 通过反转虚部符号计算 z 的复共轭。

2) 为 float 、 double 、 long double 和所有整数类型添加额外重载，它们将参数当做虚部为零的复数。

 (C++11 起)

参数

返回值

z 的复共轭

示例

#include <iostream>
#include <complex>
 
int main()
{
    std::complex<double> z(1,2);
    std::cout << "The conjugate of " << z << " is " << std::conj(z) << '\n'
              << "Their product is " << z*std::conj(z) << '\n';
}

输出： 

The conjugate of (1,2) is (1,-2)
Their product is (5,0)

参阅