Name

atan function — Computes inverse tangent

Synopsis

float atan(float x)
double atan(double x)
long double atan(long double x)

The atan function returns the inverse tangent of its argument. The return value is in the range [-π/2, π/2].

Get C++ In a Nutshell now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.