@node atan2f
@section @code{atan2f}
@findex atan2f

POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/atan2f.html}

Gnulib module: ---

Portability problems fixed by Gnulib:
@itemize
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
AIX 5.1, Solaris 9.
@end itemize