function template
<complex>

std::acos

template<class T> complex<T> acos (const complex<T>& x);
Arc cosine of complex
Returns the arc cosine of the complex number x.

This is the complex version of the acos function (defined in <cmath>).

参数

x
Complex value.

返回值

Arc cosine of x.

另见

asin
复数的反正弦 (函数模板)
atan
复数的反正切 (函数模板)
acosh
复数的反双曲余弦 (函数模板)
acos (cmath)
计算反余弦 (函数)