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std::atan

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< cpp‎ | numeric‎ | math
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Defined in header <cmath>
float       atan( float arg );
double      atan( double arg );
long double atan( long double arg );
double      atan( Integral arg );
(since C++11)

Computes arc tangent of arg

Parameters

arg - floating point value

Return value

arc tangent of arg in radians in the range of [-π/2; π/2] radians.

See also

arc tangent, using signs to determine quadrants
(function) [edit]
computes arc sine (arcsin(x))
(function) [edit]
computes arc cosine (arccos(x))
(function) [edit]
computes tangent (tan(x))
(function) [edit]
computes arc tangent of a complex number (arctan(z))
(function template) [edit]
applies the function std::atan to each element of valarray
(function template) [edit]