connectivity: the value of Math.asin(0.0) is zero

Change-Id: Ic72750fcea93edf3457ccea4a357e9d2929a646c
Reviewed-on: https://gerrit.libreoffice.org/11941
Reviewed-by: Matthew Francis <mjay.francis@gmail.com>
Tested-by: Matthew Francis <mjay.francis@gmail.com>