std::acos<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++

語言

概念

實用工具庫

字元串庫

集裝箱庫

演算法庫

迭代器庫

Numerics庫

輸入/輸出庫

本地化庫

正則表達式庫 （C++11）

原子操作庫 （C++11）

線程的支持庫 （C++11）

 

Numerics的圖書館

常見的數學函數

浮點環境

複數

數字陣列

偽隨機數生成

編譯時合理的演算法 （C++11）

通用的數值運算 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

 

複數

成員函數 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/=
非成員函數 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
指數函數 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
電源的功能 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
三角函數 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）
雙曲函數 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 > complex<T> acos( const complex<T>& z );		（C++11 起）

計算複雜的反餘弦複雜的價值z。分支切割，沿實軸外存在的時間間隔[−1 ; +1].

Original:

Computes complex arc cosine of a complex value z. Branch cut exists outside the interval [−1 ; +1] along the real axis.

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參數

z

-

複雜的價值 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

複雜的反餘弦z在範圍[0 ; ∞)沿實軸和虛軸的範圍[−iπ ; iπ]沿.

Original:

Complex arc cosine of z in the range [0 ; ∞) along the real axis and in the range [−iπ ; iπ] along the imaginary axis.

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另請參閱

asin(std::complex) （C++11）	computes arc sine of a complex number (arcsin(z)) （函數模板）
atan(std::complex) （C++11）	computes arc tangent of a complex number (arctan(z)) （函數模板）