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ASIN(3)			    Library Functions Manual		       ASIN(3)

NAME
       asin, asinf, asinl -- arc sine functions

LIBRARY
       Math Library (libm, -lm)

SYNOPSIS
       #include	<math.h>

       double
       asin(double x);

       float
       asinf(float x);

       long double
       asinl(long double x);

DESCRIPTION
       The  asin(), asinf(), and asinl() functions compute the principal value
       of the arc sine of x.

RETURN VALUES
       These functions return the arc sine in the range	[-pi/2,	 +pi/2]	 radi-
       ans.  If:

	     |x| > 1

       asin(x) raises an invalid exception and returns an NaN.

SEE ALSO
       acos(3),	 atan(3), atan2(3), cos(3), cosh(3), fenv(3), math(3), sin(3),
       sinh(3),	tan(3),	tanh(3)

STANDARDS
       The asin(), asinf(), and	asinl()	functions conform to ISO/IEC 9899:1999
       ("ISO C99").

FreeBSD	14.3			 July 31, 2008			       ASIN(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=asinf&sektion=3&manpath=FreeBSD+14.3-RELEASE+and+Ports>

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