>It was the similarities that drew
>my attention to this problem
>in your forum. The
>differences of course make all
>the difference;-).

I was just reacting to your introductory remark in the very first post: "I remember being given this problem in the following form. "

>Sorry, I only found these results
>while fooling around with the
>problem. I can't even
>remember who posed the problem
>to me initially.

It must be in one of the books in my own library. Sooner or later I am bound to bump into it again. I shall post then the reference.

>First I noticed that a1/a

(There is no need to use the <nobr> tag here. It is only useful (or so I believe) wherever there are spaces (like in xx3 = 3).)

>Thanks for your feedback.

The pleasure was mine.

Alexander Bogomolny