Copyright (C) 2000-2012 |
Manpages ATANSection: Linux Programmer's Manual (3 )Updated: 1993-06-08 Index Return to Main Contents NAMEatan - arc tangent functionSYNOPSIS#include <math.h> double atan(double x); DESCRIPTIONThe atan() function calculates the arc tangent of x; that is the value whose tangent is x.RETURN VALUEThe atan() function returns the arc tangent in radians and the value is mathematically defined to be between -PI/2 and PI/2 (inclusive).CONFORMING TOSVID 3, POSIX, BSD 4.3, ISO 9899SEE ALSOacos(3), asin(3), atan2(3), cos(3), sin(3), tan(3)
IndexThis document was created by man2html, using the manual pages. Time: 04:06:40 GMT, April 19, 2024 |