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    The following form allows you to view linux man pages.

    Command:

    asinl

    
    
    

    SYNOPSIS

           #include <math.h>
    
           double asin(double x);
           float asinf(float x);
           long double asinl(long double x);
    
           Link with -lm.
    
       Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
    
           asinf(), asinl():
               _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 ||
               _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
               or cc -std=c99
    
    
    

    DESCRIPTION

           The asin() function calculates the principal value of the arc  sine  of
           x; that is the value whose sine is x.
    
    
    

    RETURN VALUE

           On  success, these functions return the principal value of the arc sine
           of x in radians; the return value is in the range [-pi/2, pi/2].
    
           If x is a NaN, a NaN is returned.
    
           If x is +0 (-0), +0 (-0) is returned.
    
           If x is outside the range [-1, 1], a domain error occurs, and a NaN  is
           returned.
    
    
    

    ERRORS

           See  math_error(7) for information on how to determine whether an error
           has occurred when calling these functions.
    
           The following errors can occur:
    
           Domain error: x is outside the range [-1, 1]
                  errno is set  to  EDOM.   An  invalid  floating-point  exception
                  (FE_INVALID) is raised.
    
    
    

    CONFORMING TO

           C99, POSIX.1-2001.  The variant returning double also conforms to SVr4,
           4.3BSD, C89.
    
    
    

    SEE ALSO

           acos(3), atan(3), atan2(3), casin(3), cos(3), sin(3), tan(3)
    
                                      2010-09-20                           ASIN(3)
    
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