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ASIN(3)		       FreeBSD 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	11.2			 July 31, 2008			  FreeBSD 11.2

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | STANDARDS

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