Here is the SQL for the CREATE FUNCTION that was truncated in step 4:

CREATE FUNCTION dbo.ConvertToDecimalDegrees
(
    @Input VARCHAR(50)
)
RETURNS FLOAT
AS
BEGIN
    DECLARE
 ...

Interesting examples for using the APPLY and nice and succinct to.  This is a comment on the final CROSS APPLY example and not a critique on the article itself.

The comment...