std::imag<div class="t-tr-text">（STD ::复杂）<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>

 

C++

语言

概念

实用工具库

字符串库

集装箱库

算法库

迭代器库

Numerics库

输入/输出库

本地化库

正则表达式库 （C++11）

原子操作库 （C++11）

线程的支持库 （C++11）

 

Numerics的图书馆

常见的数学函数

浮点环境

复数

数字阵列

伪随机数生成

编译时合理的算法 （C++11）

通用的数值运算 Original: Generic numeric operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iota （C++11）

accumulate

inner_product

adjacent_difference

partial_sum

 

复数

成员函数 Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
complex::complex
complex::operator=
complex::real
complex::imag
complex::operator+= complex::operator-= complex::operator*= complex::operator/=
非成员函数 Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
operator== operator!=
operator<< operator>>
real
imag
abs
arg
norm
conj
proj （C++11）
polar
指数函数 Original: Exponential functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
exp
log
log10
电源的功能 Original: Power functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
pow
sqrt
三角函数 Original: Trigonometric functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sin cos tan	asin （C++11） acos （C++11） atan （C++11）
双曲函数 Original: Hyperbolic functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sinh cosh tanh	asinh （C++11） acosh （C++11） atanh （C++11）

 

Defined in header <complex>
template< class T > T imag( const complex<T>& z );

返回复数的虚分量z，即z.imag().

Original:

Returns the imaginary component of the complex number z, i.e. z.imag().

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参数

z

-

复杂的价值 Original: complex value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

返回值

z的虚分量

Original:

the imaginary component of z

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另请参阅

real	访问的复数的实数部分 Original: accesses the real part of the complex number The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
imag	accesses the imaginary part of the complex number （公共成员函数）
imag	返回的虚分量 Original: returns the imaginary component The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数模板）