casinl(category35-downloads.html) - phpMan

CASIN(3)                   Linux Programmer's Manual                  CASIN(3)

NAME
       casin, casinf, casinl - complex arc sine
SYNOPSIS
       #include <complex.h>
       double complex casin(double complex z);
       float complex casinf(float complex z);
       long double complex casinl(long double complex z);
       Link with -lm.
DESCRIPTION
       The  casin()  function  calculates  the  complex  arc  sine  of  z.  If
       y = casin(z), then z = csin(y).  The real part of y is  chosen  in  the
       interval [-pi/2,pi/2].
       One has:
           casin(z) = -i clog(iz + csqrt(1 - z * z))
VERSIONS
       These functions first appeared in glibc in version 2.1.
CONFORMING TO
       C99.
SEE ALSO
       clog(3), csin(3), complex(7)
COLOPHON
       This  page  is  part of release 3.53 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

                                  2008-08-11                          CASIN(3)