ASIN(3)                 System Library Functions Manual                ASIN(3)

NAME
     asin, asinf - arc sine functions

SYNOPSIS
     #include 

     double
     asin(double x);

     float
     asinf(float x);

DESCRIPTION
     The asin() function computes the principal value of the arc sine of x in
     the range [-pi/2, +pi/2].  The asinf() function is a single precision
     version of asin().

RETURN VALUES
     If |x|>1, asin(x) and asinf(x) return NaN and set the global variable
     errno to EDOM.

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

Interix                           May 31 2007                          Interix