Minix Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help 
ATANH(3)                 BSD Library Functions Manual                 ATANH(3)

NAME
     atanh, atanhf, atanhl -- inverse hyperbolic tangent function

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     double
     atanh(double x);

     float
     atanhf(float x);

     long double
     atanhl(long double x);

DESCRIPTION
     The atanh(), atanhf(), and atanhl() functions compute the inverse
     hyperbolic tangent of the real argument x.

RETURN VALUES
     If |x|>=1, atanh(x), atanhf(x), and atanhl(x) return +inf, -inf or NaN,
     and sets the global variable errno to EDOM.

SEE ALSO
     acosh(3), asinh(3), exp(3), math(3)

HISTORY
     The atanh() function appeared in 4.3BSD.

STANDARDS
     The atanh() function conforms to ISO/IEC 9899:1999 ("ISO C99").

BSD                            January 29, 2013                            BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | HISTORY | STANDARDS