## Search found 173 matches

Sat Aug 25, 2012 10:26 pm UTC
Forum: Mathematics
Topic: Actuarial Science
Replies: 11
Views: 3281

### Re: Actuarial Science

I realise this thread is dead as a dodo, but it pops up in Google searches, so I thought I'd leave a few comments for anyone interested who finds it in the future. For background, I studied Actuarial Science in the UK and now work in the life field in London. These comments are therefore UK-centric,...
Sat Aug 20, 2011 12:58 pm UTC
Forum: Mathematics
Topic: P(X<15,X+Y<30), X,Y~Exp(lambda), lambda=0.1 (ie E(X)=10)
Replies: 2
Views: 1420

### Re: P(X<15,X+Y<30), X,Y~Exp(lambda), lambda=0.1 (ie E(X)=10)

Durr, of course. Thanks!
Sat Aug 20, 2011 10:11 am UTC
Topic: 0940: "Oversight"
Replies: 102
Views: 31916

### Re: 0940: "Oversight"

Wow! Email addresses exposed in a public forum, and completely unobscured. I would recommend putting a picture of a red bow over those addresses, but harvest bots probably wouldnt understand the gesture. Anyway, I didnt expect that from xkcd members. Or, you know, those are just junk emails. Or the...
Fri Aug 19, 2011 11:23 pm UTC
Forum: Mathematics
Topic: P(X<15,X+Y<30), X,Y~Exp(lambda), lambda=0.1 (ie E(X)=10)
Replies: 2
Views: 1420

### P(X<15,X+Y<30), X,Y~Exp(lambda), lambda=0.1 (ie E(X)=10)

The question in question is not homework - it's an idle question someone at work posed[1]. A couple of minutes with R shows the answer is about 0.793, but I'm jiggered if I can derive a sensible answer mathematically. My approach: derive the density function of f_{X,X+Y} , (and then integrate twice ...
Fri Dec 03, 2010 2:02 pm UTC
Forum: General
Topic: stock market nub looking to get in the game
Replies: 11
Views: 1416

### Re: stock market nub looking to get in the game

Attempting to invest your money in the stock market is a mug's game. You don't have information that is better than any other market participant (in general, you are much worse off because you do not have access to research and other data sources). Hence, your return relative to the rest of the mark...
Sat Feb 06, 2010 10:44 am UTC
Forum: Fit Club
Topic: MJ's Fat-assery
Replies: 346
Views: 158802

### Re: MJ's Fat-assery

And by the miracle of extrapolation, in twelve years time you will be able to float! Enjoy lugging a lead weight around to stop you being blown away in a light breeze :p
Sun Jan 24, 2010 3:18 pm UTC
Forum: News & Articles
Topic: HOLY BAM!!! SCOTUS overturns campaign finance
Replies: 143
Views: 9515

### Re: HOLY BAM!!! SCOTUS overturns campaign finance

Yes, each corporation will - and already does - act to maximize their individual profit through the law to the detriment of the rest of us. It renders our government incapable of properly regulating any given market, basically breaking our economy and rendering our government a literally bad thing ...
Sun Jan 24, 2010 3:04 pm UTC
Forum: News & Articles
Topic: 47 Detainees 'Should Be Held Indefinitely'
Replies: 110
Views: 5838

### Re: 47 Detainees 'Should Be Held Indefinitely'

No, the Geneva Convention has quite detailed rules about when and how it applies to people who are nominally civilians. In particular, no-one should be entitled to *less* protection than a regular combatant. The exception is, essentially, spies - but this is not likely to be the case for any of the ...
Sun Jan 24, 2010 2:51 pm UTC
Forum: Books
Topic: Victorian fiction
Replies: 12
Views: 2267

### Re: Victorian fiction

I had Middlemarch in mind when I wrote that. However, understanding 99% of the matrix in which the novel is presented is to my mind unnecessary: to me the key is Eliot's relationship with religion and her moral views compared to conventional Victorian opinion. When you realise just how at odds she w...
Wed Nov 25, 2009 3:19 pm UTC
Forum: Mathematics
Topic: Simple generating function problem...
Replies: 4
Views: 448

### Re: Simple generating function problem...

Ah! The scales have fallen from my eyes! Thank you. I had actually already tried that approach but tried to turn the result back into a series sum under the deluded impression that the polynomial form was intractable (ie, didn't look properly), and of course that doesn't work.
Wed Nov 25, 2009 1:27 pm UTC
Forum: Mathematics
Topic: Simple generating function problem...
Replies: 4
Views: 448

### Simple generating function problem...

Or at least, it should be. This is an assignment problem, so feel free to just give hints as opposed to solutions (although after battering my head off the desk for the last half hour a solution would not be unwelcome ;) Given N,a random variable which takes the values 1, 2, 3,...,n with equal proba...
Sat Nov 21, 2009 8:38 pm UTC
Forum: Music
Topic: What do you play?
Replies: 274
Views: 30551

### Re: What do you play?

Find a teacher who plays the stuff you want to play and play for half an hour a day, every day. Even if it means getting out of bed half an hour earlier (which is what I have to do).
Wed Nov 04, 2009 11:55 am UTC
Forum: Mathematics
Topic: Vector spaces, subspace test, and the zero vector
Replies: 8
Views: 1682

### Re: Vector spaces, subspace test, and the zero vector

What? You seem to have a pretty big misunderstanding of what a set is. There is only one empty set. The S you gave is the empty set. It passes tests (1) and (2). Sorry, I'm not the most rigorous mathematician in the world [1]. There is indeed only one empty set, but there are plenty of ways to defi...
Tue Nov 03, 2009 4:03 pm UTC
Forum: Mathematics
Topic: Vector spaces, subspace test, and the zero vector
Replies: 8
Views: 1682

### Vector spaces, subspace test, and the zero vector

Apologies if this is ground the forum has covered before: I did a quick search, but quite possibly missed something. Given a *general* vector space, V (ie (V,+) is any commutative group, plus a definition of multiplication by a real, not just the Euclidean vector space), we can select a subset of it...
Tue Nov 03, 2009 3:44 pm UTC
Forum: Mathematics
Topic: Careers in math?
Replies: 15
Views: 1841

### Re: Careers in math?

You could study to be an actuary. It would definitely take a little while, but the time investment is often well-rewarded. Your math background would serve you well. I would second this one. It isn't for everyone (disclaimer - I'm studying a BSc in Actuarial Science in the UK) but if you enjoy the ...
Tue Oct 27, 2009 11:07 am UTC
Forum: The Help Desk
Topic: Ubuntu: forcing a hard reset of optical drive
Replies: 3
Views: 930

### Re: Ubuntu: forcing a hard reset of optical drive

It turns out the drive was dying and these were its death throes. About a week after my post, it stopped working completely. So if you have a problem like this, and it's still under warranty, remove it, bang it firmly on the floor a few times for added not-workingness, and send it back with a cute a...
Sat Oct 24, 2009 11:45 am UTC
Forum: Fit Club
Topic: Swimming: its not just good for escaping Raptors anymore!
Replies: 30
Views: 6686

### Re: Swimming: its not just good for escaping Raptors anymore!

When I was swim-fit back in my youth I did 100m sprints with no breath on the first length and one on the way back, and for steady swimming I was five strokes/breath. And yes, <50m is tedious. "Accidentally" kicking people who are crowding lane ends tends to get the message across fairly s...
Sat Oct 24, 2009 11:36 am UTC
Forum: Fit Club
Topic: Ugh, a fat man in his pants
Replies: 23
Views: 4706

### Re: Ugh, a fat man in his pants

So, since I stopped doing real work and went back to being a lazy student, I haven't had any spare time for forum-philandering, but at the three month mark, it's time for an update, I guess. I'm now down to 89kg, or 196lbs, so over a three month period I've lost 7kg which is pretty much what I was a...
Sun Oct 11, 2009 1:01 pm UTC
Forum: Fit Club
Topic: Trying to fill out
Replies: 11
Views: 2177

### Re: Trying to fill out

If you have flat feet, ignore your doctor and find someone that specialises in bio-mechanics for sports. I don't know to what extent it will affect your ability to lift weights (Victoria?), but it is a good idea to look at it. If you haven't tried orthotic insoles, grab a cheap pair (in the UK, from...
Mon Sep 21, 2009 3:53 pm UTC
Forum: The Help Desk
Topic: Ubuntu: forcing a hard reset of optical drive
Replies: 3
Views: 930

### Ubuntu: forcing a hard reset of optical drive

For some reason my drive[1] randomly locks up when ripping CDs. It will do a few ok, then hang. Once it hangs, the only way to fix it seems to be shutting down (restarting doesn't cure it). As far as I can see from a quick Google, the only way to do this would be to write a program that issues a ker...
Mon Sep 21, 2009 12:35 pm UTC
Forum: The Help Desk
Topic: Excel question: cell name as a variable. probably easy.
Replies: 3
Views: 1537

### Re: Excel question: cell name as a variable. probably easy.

And if you've got that much data to work with, you might (possibly) profit from an afternoon running through an R tutorial.
Wed Sep 09, 2009 1:02 pm UTC
Forum: Language/Linguistics
Topic: Pi Equals 3 (Not a Math Thread)
Replies: 57
Views: 8823

### Re: Pi Equals 3 (Not a Math Thread)

In the production of his first volume, Tolkien experienced what became for him a continual problem: printer's errors and composer's mistakes, including well-intentioned 'corrections' of his sometimes idiosyncratic usage. These 'corrections' included the altering of dwarves to dwarfs , elvish to elf...
Mon Sep 07, 2009 9:56 am UTC
Forum: Language/Linguistics
Topic: Pi Equals 3 (Not a Math Thread)
Replies: 57
Views: 8823

### Re: Pi Equals 3 (Not a Math Thread)

I've just realised I never answered my own question. First one must imagine a small child, who is being read to before bedtime by her mother, who has a strange fondness for books on matters Antipodean: "Mummy, what did you bring a book to read out of about Down Under up for?" I did say it ...
Tue Sep 01, 2009 2:56 pm UTC
Forum: School
Topic: The where are you going to Uni 2009 thread
Replies: 43
Views: 3210

### Re: The where are you going to Uni 2009 thread

Hull also has smaller diameter telephone wire than the rest of the UK. I'm not sure that's cool though.
Fri Aug 28, 2009 1:12 pm UTC
Forum: News & Articles
Replies: 41
Views: 2801

There is a difference between straightforward terms of general abuse and specific accusations. Calling someone a "ho" is not the same as writing that they operate an adult escort agency from their house, that they service 4-6 clients per week, and that they charge £400 per hour. For example.
Fri Aug 28, 2009 11:57 am UTC
Forum: Forum Games
Topic: Random bitstream! (000zerozero000000zero)
Replies: 1931
Views: 185396

### Re: Random bitstream! (000zerozero000000zero)

1
Thu Aug 27, 2009 9:24 pm UTC
Forum: News & Articles
Replies: 41
Views: 2801

To me the distasteful aspect of the case is the abuse of the legal system to obtain the blogger's name. It seems clear that there was never any intent to pursue a legal action: she just wanted to know who it was, and went through the rigmarole of discovery in order to get it. To me, that ought to ca...
Thu Aug 27, 2009 9:16 pm UTC
Forum: News & Articles
Topic: California to hold 'garage sale'
Replies: 21
Views: 1217

### Re: California to hold 'garage sale'

I call dibs on Redondo Beach.
Thu Aug 27, 2009 3:08 pm UTC
Forum: Language/Linguistics
Topic: Pi Equals 3 (Not a Math Thread)
Replies: 57
Views: 8823

### Re: Pi Equals 3 (Not a Math Thread)

But can anyone end a sentence with seven prepositions (albeit in a contrived manner)?
Thu Aug 27, 2009 10:50 am UTC
Forum: Books
Topic: Iain M. Banks
Replies: 124
Views: 166658

### Re: Iain M. Banks

The conflict (to me) comes through the tension between moral systems. The Culture takes Utilitarianism to its logical conclusion. We as humans don't instinctively work off a utilitarian moral base and therefore various aspects of the Culture strike us as uncomfortable. Would you want a hidden hand o...
Thu Aug 27, 2009 10:23 am UTC
Forum: General
Replies: 20862
Views: 2223021

Did someone say bow ties?

Spoiler:
4793_126379711616_718696616_2826599_918143_n.jpg (59.71 KiB) Viewed 4013 times

That's very-soon-to-be Mrs u38cg on the left.
Thu Aug 27, 2009 10:11 am UTC
Forum: General
Topic: [SAFESPACE] Woman Thread - All Things Women. Period.
Replies: 27356
Views: 2540526

I think it was a compliment, as in, "I like tall girls because I can look straight into their eyes" ... I guess it came across bad but who among us hasn't accidentally given a compliment that came out wrong? Yeah...the lesson to take from this is that red wine + a desire to pay a suave an...
Wed Aug 26, 2009 2:06 pm UTC
Topic: How will the US debt be resolved?
Replies: 198
Views: 16442

### Re: How will the US debt be resolved?

Now not being one myself, I might have it wrong here, but I'm fairly sure libertarians aren't against insurance per se. I think they're against government interference (or provision) in insurance.
Wed Aug 26, 2009 9:03 am UTC
Forum: Forum Games
Topic: Count to a Million
Replies: 74777
Views: 4555779

### Re: Count to a Million

21240 is divisible by every single digit integer except 7.
Wed Aug 26, 2009 6:52 am UTC
Forum: General
Topic: [SAFESPACE] Woman Thread - All Things Women. Period.
Replies: 27356
Views: 2540526

u38cg wrote:The Safespace tag on this thread means NOT having to deal with immature comments like that. Don't do it again. -L

Yep, not only an ass but I also managed to say the exact opposite of what I meant. I apologise for being both crass and incompetent.
Wed Aug 26, 2009 12:44 am UTC
Forum: Forum Games
Topic: Count to a Million
Replies: 74777
Views: 4555779

### Re: Count to a Million

21221 - it's only got 2s and 1s in it!
Wed Aug 26, 2009 12:37 am UTC
Replies: 26
Views: 2294

Re: uk books I believe they all say not to be resold as well and yet market stalls buy and sell books and every town has a second hand bookshop, usually one that's been there for generations. I think this is on cd's too but in this age of mp3 and ebook readers I have no physical books or discs to h...
Wed Aug 26, 2009 12:32 am UTC
Forum: General
Topic: [SAFESPACE] Woman Thread - All Things Women. Period.
Replies: 27356
Views: 2540526

Didn't like you in heels? That's just silly. I think very tall ladies get a lot of unnecessary flack from certain immature boys who equate height with dominance and masculinity. True. There are also quite a lot of boys* who think it's nice to be able to see you while looking straight ahead. * Yeah,...
Tue Aug 25, 2009 6:17 pm UTC
Forum: News & Articles
Topic: Legal Action Over BNP Membership
Replies: 73
Views: 4584

### Re: Legal Action Over BNP Membership

Lame. Forbidding these people from marching and participating in the political process is not going to magically change anyone's mind. More likely it will result in the extreme members of these groups acting on their agenda outside the political sphere. Disclaimer: I'm married to someone who is an ...
Tue Aug 25, 2009 3:31 pm UTC
Forum: News & Articles
Topic: Legal Action Over BNP Membership
Replies: 73
Views: 4584

### Re: Legal Action Over BNP Membership

You're quite right. Race Relations is one of the acts that wasn't folded into the Equality Act, and is due to come under another over-arching bill sometime next year.