cacos man page on HP-UX

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cacos(3M)							     cacos(3M)

NAME
       cacos(),	 cacosf(),  cacosl(),  cacosw(),  cacosq() - complex arccosine
       functions

SYNOPSIS
DESCRIPTION
       These functions are available only for Integrity servers.

       returns the complex arccosine of z, in the range of a strip  mathemati‐
       cally  unbounded	 along	the  imaginary axis and in the interval [0,Pi]
       along the real 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 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 and link in the
       math library by specifying on the compiler or linker command line.

RETURN VALUE
       =

       returns Pi/2-i0.

       returns Pi/2+iNaN.

       returns Pi/2-iInf, for finite x.

       returns NaN+iNaN	 and  optionally  raises  the  invalid	floating-point
       exception, for nonzero finite x.

       returns Pi-iInf, for positive-signed finite y.

       returns +0-iInf, for positive-signed finite y.

       returns 3Pi/4-iInf.

       returns Pi/4-iInf.

       (where the sign of the imaginary part of the result is unspecified).

       returns	NaN+iNaN  and  optionally  raises  the	invalid floating-point
       exception, for finite y.

       returns NaN-iInf.

       returns NaN+iNaN.

ERRORS
       No errors are defined.

SEE ALSO
       acos(3M), ccos(3M), complex(5).

STANDARDS CONFORMANCE
       : ISO/IEC C99 (including Annex G, ``IEC 60559-compatible complex arith‐
       metic'')

			   HP Integrity Server Only		     cacos(3M)
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