catanh(3M)catanh(3M)NAMEcatanh(), catanhf(), catanhl(), catanhw(), catanhq() - complex arc
hyperbolic tangent functions
SYNOPSISDESCRIPTION
These functions are available only for Integrity servers.
returns the complex arc hyperbolic tangent of z, in the range of a
strip mathematically unbounded along the real axis and in the interval
along the imaginary axis. Branch cuts are outside the interval [-1,+1]
along the real axis.
is a version of it takes a argument and returns a result.
is a version of it takes a argument and returns a result.
is an version of it takes an argument and returns an result.
is equivalent to on HP-UX systems.
USAGE
To use these functions, compile with the default option. To use com‐
pile with the option. Make sure your program includes Link in the math
library by specifying on the compiler or linker command line.
RETURN VALUE
= and is odd.
returns +0+i0.
returns +0+iNaN.
returns +Inf+i0 and raises the divide-by-zero floating-point exception.
returns for finite positive-signed x.
returns NaN+iNaN and optionally raises the invalid floating-point
exception, for nonzero finite x.
returns for finite positive-signed y.
returns
returns +0+iNaN.
returns NaN+iNaN and optionally raises the invalid floating-point
exception, for finite y.
returns (where the sign of the real part of the result is unspecified).
returns NaN+iNaN.
ERRORS
No errors are defined.
SEE ALSOatanh(3M), ctanh(3M), complex(5).
STANDARDS CONFORMANCE
: ISO/IEC C99 (including Annex G, ``IEC 60559-compatible complex arith‐
metic'')
HP Integrity Server Only catanh(3M)