Good Math, Bad Math

Mark C. Chu-Carroll

Big Numbers and Air Travel

As you’ve surely heard by now, on christmas day, some idiot attempted to blow up an airplane by stuffing his underwear full of explosives and then lighting his crotch on fire. There’s been a ton of coverage of this – most of which takes the form of people running around wetting their pants in terror.…

One thing that continually amazes me is the amount of email I get from readers of this blog asking for career advice. I usually try to just politely decline; I don’t think I’m particularly qualified to give personal advice to people that I don’t know personally. But one thing that I have done before is…

Friday Random Ten, 12/18

Naftule’s Dream, “Speed Klez”: Naftule’s Dream is a brilliant progressive klezmer band. I happen to love klezmer, but I think that anyone into jazzy prog rock would also enjoy them. They’re terrific. Oregon, “Celeste”: Oregon is a band that I can’t make up my mind about. They’re a jazz trio, with most melodies played by…

An alert reader pointed me at a recent post over at Uncommon Descent by a guy who calls himself “niwrad”, which argues (among other things) that life is non-computable. In fact, it basically tries to use computability as the basis of Yet Another Sloppy ID Argument (TM). As you might expect, it’s garbage. But it’s…

I’ve been getting lots of mail from readers about a new article on Google’s Knol about Cantor’s diagonalization. I actually wrote about the authors argument once before about a year ago. But the Knol article gives it a sort of new prominence, and since we’ve recently had one long argument about Cantor cranks, I think…

What is math?

I’ve got a bunch of stuff queued up to be posted over the next couple of days. It’s been the sort of week where I’ve gotten lots of interesting links from readers, but I haven’t had time to finish anything! I thought I’d start off with something short but positive. A reader sent me a…

So, we’ve built up some pretty nifty binary trees – we can use the binary tree both as the basis of an implementation of a set, or as an implementation of a dictionary. But our implementation has had one major problem: it’s got absolutely no way to maintain balance. What that means is that depending…

It’s not saturday, but I’ve got a recipe that I needed to write down before I forget it, so you’re getting an extra bonus. I usually make a simple cranberry relish for thanksgiving. But it needs to be made a couple of days in advance. This year, I completely forgot about the cranberries until this…

(This is an edited repost of one of the posts from the earlier version of my Haskell tutorial.) (This file is a literate haskell script. If you save it as a file whose name ends in “.lhs”, it’s actually loadable and runnable in GHCI or Hugs.) Like any other modern programming language, Haskell has excellent…

The Balance of Screening Tests

As you’ve no doubt heard by now, there’s been a new recommendation issues which proposes changing the breast-cancer screening protocol for women under 50, by eliminating mammograms for women who don’t have significant risk factos. While Orac has done a terrific job of covering this here and here, I wanted to throw in a couple…