MirOS Manual: atan(3), atanf(3)

ATAN(3)                    BSD Programmer's Manual                     ATAN(3)

NAME

     atan, atanf - arc tangent function of one variable

LIBRARY

     libm

SYNOPSIS

     #include <math.h>

     double
     atan(double x);

     float
     atanf(float x);

DESCRIPTION

     The atan() and atanf() functions compute the principal value of the arc
     tangent of x in the range [-pi/2, +pi/2].

SEE ALSO

     acos(3), asin(3), atan2(3), cos(3), cosh(3), math(3), sin(3), sinh(3),
     tan(3), tanh(3)

STANDARDS

     The atan() functions conforms to ANSI X3.159-1989 ("ANSI C").

MirOS BSD #10-current            May 2, 1991                                 1

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