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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]	radians.
     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 ports 15.1		  July 31, 2008 			 ASIN(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=asin&sektion=3&manpath=FreeBSD+15.1-RELEASE+and+Ports>

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