I wasn't offended, nor thought your posting was snarky, I thought/took it as sincere. However, I was most surprised you posted such a comment to such an old posting, although perhaps you didn't notice how old it was.(?) That was the main reason I posted my comment, as, again, I doubt Paolo will respond and/or even "see" it, and I didn't see your posting as of being of general benefit and also being a bit severe. Again, though, I'll be first to admin there is night and day difference between Paolo's and Peter's response approaches, but that's actually typical of both of them. (The latter you wouldn't know unless you've a long time reader of these forums. If not, or if not even a recent close follower, you probably also wouldn't know Paolo, although inactive for almost a year, is still ranked #6 for all time. The latter doesn't automatically preclude constructive critique, but perhaps one should be even more careful insuring a critique is constructive.)
Long time ago, in a galaxy not so far away, I'll be first to note that many of Paolo's responses were, might we say "terse". That could be due to his personality, the expectation the forums (then) weren't also oriented for beginners, and also the fact that the Paolo (or us) wasn't being paid for his time for these responses; all possible reasons for his "terseness". He may have thought the OP didn't seem to do much due diligence, as such basic information is available in many books (and also perhaps hadn't done any simple Internet content searching). (If the OP had mentioned, like he did in his follow-up post, he was student and unable to find information, or better yet, was looking for a better or alternative explanation for further clarification, he might have received a response, like Peter's, from the get go.)
Not ignoring the prior, I truly appreciate you're last response, hope my responses do not dissuade you from further participation (or your own contributions) and further hope you find these forums helpful.
The forgoing aside, you say you too were looking for more information on these subjects. Have you found the information you're looking for? If not, don't let either of my responses deter you from posting your own question(s).
Again, thank you for your follow-on posting, hope to see more of you on these forums!
