Hi Stuart,

The retina example has perfectly served its purpose. Meaning, I got exactly what you tried to convey through it and I am simply delighted by the way you have applied your thought process to the problem ! Thanks a lot.

I would also like to draw your attention to the "Isosceles triangle problem" that I had posted a few days ago. I have also posted a reply to it describing how i have tried to solve it, but to no avail.
Whenever you shall be free, please glance through it at your leisure (and kindly forgive my grammatical mistakes..)

:o)
Regards,
Deep G