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function template
<complex>

std::atan

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

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

Parameters

x
Complex value.

Return value

Arc tangent of x.

See also

asin
Arc sine of complex (function template )
acos
Arc cosine of complex (function template )
atanh
Arc hyperbolic tangent of complex (function template )
atan (cmath)
Compute arc tangent (function )

C++

Reference