HP-UX Reference (11i v2 07/12) - 3 Library Functions A-M (vol 6)

a
asind(3M) asind(3M)
NAME
asind( ), asindf(), asindl(), asindw(), asindq( ) - degree-valued arcsine functions
SYNOPSIS
#include <math.h>
double asind(double x);
float asindf(float x);
Itanium(R)-based System Only
long double asindl(long double x);
extended asindw(extended x);
quad asindq(quad x);
DESCRIPTION
asind() returns the degree-valued arcsine of x, in the range 90 to 90.
asindf() is a float version of asind(); it takes a float argument and returns a float
result.
Itanium-based System Only
asindl() is a long double version of asind(); it takes a long double argument and returns
a
long double result.
asindw() is an extended version of asind(); it takes an extended argument and returns an
extended result.
asindq() is equivalent to asindl() on HP-UX systems.
USAGE
To use these functions, compile either with the default -Ae option or with the -Aa
and
-D_HPUX_SOURCE options.
To use (for Itanium-based systems)
asindw() or asindq(), compile also with the -fpwidetypes
option.
To use any of these functions, make sure your program includes
<math.h>, and link in the math library
by specifying -lm on the compiler or linker command line.
For more information, see the HP-UX Floating-Point Guide.
RETURN VALUE
asind(±0) returns ±0.
If the magnitude of x is greater than one, asind() returns NaN and raises the invalid exception.
If x is NaN, asind() returns NaN.
ERRORS
If the magnitude of x is greater than one, asind() sets errno to [EDOM].
Itanium-based System
HP-UX libm functions on Itanium-based system do not set errno by default. For errno setting, compile
with the
+Olibmerrno option.
SEE ALSO
acosd(3M), asin(3M), atand(3M), atan2d(3M), cosd(3M), sind(3M), tand(3M), atan2d(3M), math(5).
STANDARDS CONFORMANCE
These functions are not specified by any standard.
108 Hewlett-Packard Company 1 HP-UX 11i Version 2: December 2007 Update