Thanks for that link. The primer is a useful thing for
getting me thinking about the problem solving but maybe a little
too abstract to be of direct help. Is there a more direct way of
getting to omega or is it a case of constructing a relationship
like I have below?
Was the link to your site for a particular example? I
couldn't find one but there's lots there, of course, for later.
So anyway, focused a bit and came up with this, which seems