I know the pagerank formula (i.e: how to calculate it), but I'm not able to find it in Google website. May you tell me if this formula exist in Google site? I found it only in other web sites.
What does it matter? The only official source I've seen is here (by Brin and Page themselves) and I've no reason to believe that there's a more up to date version available).
Thanks to all for the answer. I talked about this formula. I know that the real way to calculate the PR is not shared.
as far as i know the logarithm of how to compute for pr is top secret and no other seo company knows how does google rank pages and sites
Yes, I know it. I was looking for an "official" web site talking about the formula, as per link posted by hooperman.