cacosh(3M)cacosh(3M)NAMEcacosh(), cacoshf(), cacoshl(), cacoshw(), cacoshq() - complex arc
hyperbolic cosine functions
SYNOPSISDESCRIPTION
These functions are available only for Integrity servers.
returns the complex arc hyperbolic cosine of z, in the range of a half-
strip of non-negative values along the real axis and in the interval
[-iPi,iPi] along the imaginary axis. There is a branch cut at values
less than 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
=
returns +0+iPi/2.
returns +Inf+iPi/2, for finite x.
returns NaN+iNaN and optionally raises the invalid floating-point
exception, for finite x.
returns +Inf+iPi, for positive-signed finite y.
returns +Inf+i0, for positive-signed finite y.
returns +Inf+i3Pi/4.
returns +Inf+iPi/4.
returns +Inf+iNaN.
returns NaN+iNaN and optionally raises the invalid floating-point
exception, for finite y.
returns +Inf+iNaN.
returns NaN+iNaN.
ERRORS
No errors are defined.
SEE ALSOacosh(3M), ccosh(3M), complex(5).
STANDARDS CONFORMANCE
: ISO/IEC C99 (including Annex G, ``IEC 60559-compatible complex arith‐
metic'')
HP Integrity Server Only cacosh(3M)