Comments for Anthony Lewis

Comment on Ruby Generators by Gavin

Gavin — Mon, 23 Nov 2009 11:35:41 +0000

The above proof is nearly complete. Instead of “Hence this number is prime…” it should say “This number is prime or composite. If it’s prime, that’s a contraction; QED. If it’s composite, it can be factored into primes, none of which we previously knew about; contradiction; QED.”

In short, given any finite list of primes, it’s always possible to find a new one. Therefore the list is infinite. This proof goes back to Euclid’s time.

Comment on Ruby Generators by Joshua Cheek

Joshua Cheek — Sat, 03 Oct 2009 14:03:13 +0000

Montana says “there are not a finite number of primes.”

Anthony says “Prove it”

Assume there are a finite number of primes. If you multiply them all together, you will have a number for which every prime is a multiple. Add one to this number, and you will have a new number which no prime divides. Hence this new number is prime. This is a contradiction, since it is not in the finite set of all primes, so the assumption is wrong and there are an infinite number of primes.

Or, in haiku http://xkcd.com/622/

Comment on Ruby Generators by Shot

Shot — Sat, 03 Oct 2009 11:39:07 +0000

If you’re after code similarity, you can use Enumerable#any? instead of Enumerable#all?:

if p.any? { |f| n % f == 0 }

if p.any? { |f| (n % f).zero? }

(IMHO using positive checks like the above is also simpler to read and parse by humans).

Comment on 10 Years by Dee

Dee — Sat, 12 Sep 2009 12:06:10 +0000

Went back and read your old posts. I had no idea you had been blogging since 99. That’s pretty cool. That was about the time I started working at the high school in inclusion. I had decided that the kids were old enough for me to go back to work after being a sahm for ten years, told Myra Dyer that I was applying for a teacher’s aide position in special ed. and she made a few phone calls. I had an interview the next day. I remember being completely shocked the first week. I had been out of touch for awhile and high school was nothing like I remembered it :)

Paige it will be no time and you will be buying pizza again. It will be for Matthew’s friends now though and you better get ready. Teenage boys can make a lot of pizza disappear!

Comment on 10 Years by Anthony

Anthony — Wed, 09 Sep 2009 19:22:13 +0000

Oh well, I said I remember it like it was yesterday. I’ve probably forgotten most of what happened yesterday, too.

Comment on 10 Years by Paige

Paige — Wed, 09 Sep 2009 18:17:56 +0000

It wasn’t cold, honey. It was burned. To a crisp. I do know how to reheat pizza. :P

I think all those pizzas weren’t just for us, just to clarify. We use to actually have friends over all the time. Oh, the younger years….

Comment on Ruby Generators by roger rubygems

roger rubygems — Thu, 03 Sep 2009 22:29:11 +0000

Checkout fibers, too, I suppose :)
-r

Comment on Die Spammers by Anthony

Anthony — Wed, 15 Jul 2009 00:33:59 +0000

I can help you install the plugin if you want. Catch me on chat sometime.

As for the update. You can do that yourself. Just click “Update Now”, then choose the automatic update.

Comment on Die Spammers by Dee

Dee — Tue, 14 Jul 2009 22:13:27 +0000

I went looking for the aforementioned plugin and it says I need to create files and make them writable via CHMOD 666. Do you do that using command line?

http://wordpress.org/extend/plugins/google-sitemap-generator/installation/

Also I notice that when I go to my WordPress dashboard I get a message that tells me I need to update WordPress but am I correct in assuming that my host needs to do that or should I just click it and follow instructions?

“WordPress 2.8.1 is available! Please update now.” with please update now being a clickable link.

you know me – answers just always lead to more questions :)

Comment on Die Spammers by Anthony

Anthony — Tue, 14 Jul 2009 19:52:26 +0000

Now this is interesting – in the few hours since this post was published it has already received 3 spam comments and 1 spam trackback.

Apparently spammers like posts that talk about spam.