atan

   Format

     #include  <math.h>

     double atan  (double x);

     float atanf  (float x); (Integrity servers, Alpha)

     long double atanl  (long double x); (Integrity servers, Alpha)

     double atand  (double x); (Integrity servers, Alpha)

     float atandf  (float x); (Integrity servers, Alpha)

     long double atandl  (long double x);

                         (Integrity servers, Alpha)
 

Additional information available:

Argument        Description