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ATAN2(3)		   Linux Programmer's Manual		      ATAN2(3)

NAME
       atan2 - arc tangent function of two variables

SYNOPSIS
       #include	<math.h>

       double atan2(double y, double x);

DESCRIPTION
       The  atan2() function calculates	the arc	tangent	of the two variables x
       and y.  It is similar to	calculating the	arc tangent of y /  x,	except
       that  the signs of both arguments are used to determine the quadrant of
       the result.

RETURN VALUE
       The atan2() function returns the	result in radians,  which  is  between
       -PI and PI (inclusive).

CONFORMING TO
       SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO
       acos(3),	asin(3), atan(3), cos(3), sin(3), tan(3)

				  1993-06-08			      ATAN2(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | CONFORMING TO | SEE ALSO

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