opendarwin man page for atanh

Query: atanh

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Section: 3

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ATANH(3)						   BSD Library Functions Manual 						  ATANH(3)

NAME
atanh -- inverse hyperbolic tangent function
SYNOPSIS
#include <math.h> double atanh(double x);
DESCRIPTION
The atanh() function computes the inverse hyperbolic tangent of the real argument x.
SPECIAL VALUES
atanh(+-0) returns +-0. atanh(+-1) returns +-infinity and raises the "divide-by-zero" floating-point exception. atanh(x) returns a NaN and raises the "invalid" floating-point exception for |x| > 1.
SEE ALSO
acosh(3), asinh(3), exp(3), infnan(3), math(3), matherr(3)
STANDARDS
The atanh() function conforms to ISO/IEC 9899:1999(E). 4.3 Berkeley Distribution November 20, 2002 4.3 Berkeley Distribution
Related Man Pages
atanh(3m) - hpux
atanhl(3m) - hpux
atanhq(3m) - hpux
atanhf(3) - freebsd
atanhl(3) - freebsd
Similar Topics in the Unix Linux Community
Perl:: mass replacement of converting C code formats to tgmath.h