acos man page on HP-UX

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acos(3M)							      acos(3M)

       acos(), acosf(), acosl(), acosw(), acosq() - arccosine functions

   HP Integrity Server Only
       returns the arccosine of x,

       is a version of it takes a argument and returns a result.

   Integrity Server Only
       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.

       To  use	these functions compile either with the default option or with
       the and the options.

       To use (for Integrity servers) or compile also with the option.

       To use any of these functions, make sure your program includes and link
       in  the	math  library  by specifying on the compiler or linker command

       For more information, see the at the following site:

   PA-RISC System Only
       Millicode versions of the and functions are available.  Millicode  ver‐
       sions  of math library functions are usually faster than their counter‐
       parts in the standard library.  To use  these  versions,	 compile  your
       program with the or the optimization option.

       For  special  cases, the millicode versions return the values described
       in the section, but do not set

       returns +0.

       If the magnitude of x is greater than one, returns NaN and  raises  the
       invalid exception.

       If x is NaN, returns NaN.

       When it raises no other exception, whether raises the inexact exception
       is unspecified.

       If the magnitude of x is greater than one, sets to [EDOM].

   Integrity Server Only
       HP-UX functions on Integrity server do not set by  default.   For  set‐
       ting, compile with the option.

       acosd(3M),  asin(3M), atan(3M), atan2(3M), cacos(3M), cos(3M), sin(3M),
       tan(3M), math(5).

       : SVID3, XPG4.2, ANSI C, ISO/IEC C99 (including Annex  F,  ``IEC	 60559
       floating-point arithmetic'')

       :  ISO/IEC  C99	(including  Annex F, ``IEC 60559 floating-point arith‐


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