That letter is Lambda, which is the notation used in Chemistry to denote the half-life of a radioactive isotope.
Incidentally, they use the lower case lambda, since using upper case would look like and upside down V, which people would probably think was just an A and Valve had "stylized" it.
The lower case lambda is the decay constant of a radioactive substance. It's inversly proportional to half-life, yes, but it's not the same thing.
The capital lambda is a lot of things, but none of them has anything to do with radioactive half-life.
Halflife refers to the amount of time it takes for a radioactive substance to decay to 1/2 of its mass.
Erm, no. It's the time it takes for the activity to drop to it's half. Which is naturally in direct relation to the number radioactive atoms, but since they don't, as you probably very well know, mysteriously vanish, but rather change form to other atoms. The mass of a radioactive blob does change, yes, but that should not be mixed with halflife.
For a vodkaphile on a budget nothing beats pearl vodka, it's smoother than Grey Goose and costs only ~$20/750ml. Hell I'm not on a budget anymore but I still see no reason to waste $30 per bottle =) Itgoest through A "five-time distillation and six-time filtration process" which makes it exceptionally smooth.
Five-time distillation? Now, that's an outright lie if I've ever seen one.
One of the quickest definitions of prime is "A number divisable only by 1 and itself.". 1 satisfies this.
Well, that post of mine was iself a reply to a reply to my post. Having read that you might have understood me better.
That won't work. Unless you change the forementioned huge amount of theorems, starting from the fundamental theorem of arithemitcs.
The most commonly used definition is "a prime has exactly two factors. Itself and one." Therfore 1 is not a prime. 1 not being a prime, simplifies numerous theorems. (e.g. the fundamental theorem of arithmetics, which states "Any positive integer can be represented in exactly one way as a product of primes." If 1 was a defined to be a prime that would have to modified. It can be done, but the consesus these days is that it's just easier to define 1 not to be a prime.
No wonder these interesting "scientific research results" keep showing up.
Sorry, but I won't buy it. With that jackass on the steering wheel, we all know damn well what the US stance will be in all this for the next four years.
People seem to forget about this when talking about wind or solar power, they are made from natural resources too. Mining trucks need to dig up the copper, steel, and aluminium, the nasty mines are still going to be around. The chemical belching factories are going to have to refine it. Enormous assembly plants are going to have to put it together. Fuel burning trucks are going to ship them to there assemlby site.
How does a freaking coal plant differ from that? Clean energey can't come out of thin air. Or well, wind farms are as close to that as we can get.
Which method of power production has the lowest Total Environmental Impact per KwH from mining till the facility is junked?
Between a coal and wind plants? Take freaking wild guess!
1 is not prime by definition. You could consider 1 prime, but then you'd have a different concept that wasn't "prime." (though very close)
Excuse me?
Sadly you're just an ac, because now I'll never get to hear what this "primeness" would be that 1 is so close to. Your comment really is just an insult to either me or you, and I'm guessing you didn't mean it either way so I'm assuming it's you. Thenagain, you may have had a hunch you were on thin ice, posting as ac the way you did.
Re:How to prove that all odd numbers are prime
on
Fun with Prime Numbers
·
· Score: 2, Informative
Yeah, all those people seem to be under the delusion that one is prime... The number one is neither prime nor composite though (you'd think the mathematician in the joke would know that).
Actually, 1 not being a prime is more of a consensus than a mathematical fact.
Primes could be defined so that 1 is also a prime, it's just that way too many theorems we have these days would need to be refined to deal with 1 properly (starting with the fundamental theorem of arithmetics). Which is almost the same as to say, things are easier when 1 is not regarded a prime. But that doesn't imply that 1 is not a prime.
One could argue that it would be more practical if a positive interger would either be a composite or a prime. Because positive integers now split into three classes: Primes, composites and 1. Meaning that negating prime theorems for composites require special handling with 1.
Now, I wouldn't go telling anyone that 1 is a prime. But I'd be lieing if tried to claim that I remember to include it as an option when I'm assuming a number to be a prime when I've discovered that it's not a composite. Moreover, I must admit that, deep down, I do think of it as prime. It's just that the consensus is to leave it out of the equations, just like when we hop from N to Z+, to make things a little bit easier.
3) Profit! Uh... No. Actually, after a: selecting NFS from the list and b: requesting (DHCP-enabled networks) or specifying an IP address, c: enter the NFS server's IP address and the NFS path where the ISO images are located (not the mount point, the actual path from the root -- e.g./var/local/nfs/fedora/tettnang/
I always do it that way, but...
Are others having problems with the network set up? The install exits with signal 11 here, with or without dhcp. And the box is a vanilla i386 with a really vanilla 3com network card.
Now, the only problem is the torrent only gives me 30KB download speed;(.
Yeah, I've been experiencing similar things with torrent for months now. I have +10Mbps up/down streams here and I remember those ~1Mbyte up/down sessions with bittorrent, but... for quite some time now, it's been sluggish as hell. I have no idea why, p2ps and other sources have provided me all the bandwidth I've wanted, even now 4 ftp sites are pushing 800k down, so I've never really looked into it, but still, it makes me wonder what's going on, because I'd be more than happy to contribute with the upstream we have here.
Others experiencing sluggishness with bt? Has something changed with bt during the past year?
If you run yum with '-C' it will use its local cache instead of looking for new headers on the servers.
True, but it won't make it much faster. The time is actually spent checking the dependency tree cache. The new header check is a blink inspite of how it appears on screen.
Then again, apt is not any faster in that. Checking a dep tree of 2000 packages just simple takes time. Only, IIRC, "apt-get install" skips some checks, whereas "yum install" doesn't.
Even so, I am wondering that can't the common case be made faster.
Didn't mean it that way. I've borrowed from someone else, too, years ago. And I've seen it being used left and right across then net. No need to change on my account. It was just funny to see again as someone else's sig.
Correct me if I'm wrong, but isn't there also a Portland in Maine? Portland, Oregon would be reasonable though. The state is not mentioned in the article, by the way, though it does say 'Northwest'.
and there's the remark about the constant raining, which points even more towards Oregon than the north-west remark, even when compared to Maine.;-)
What on earth could Tom's do better with more time? Another graph? Please. I want to know clock speeds and RAM size, general performance metrics, and if it'll fit in my case. Anything else is pretty pointless. If Tom's can't get that done in the same amount of time as the HUNDREDS of other enthusiast sites out there, then that's their problem. If they can do it, but not with quality, guess what? Still their problem.
Now let's see. Driver stability? Picture quality issues and artifacts? Compatibility with recent games? Overall article reliability?
I'm not saying no one should post zero-day reviews. If you just want to approximately compare it to your card, fine, but if you're looking for information about wether to actually buy the damn thing the zero-day reviews are a waste of ether. But what you're saying sounds like there'd be no need for thorough testing by a distinguished hw sites.
Besides, I feel a lot more comfortable that NVidia and Ati both will know that Tom will post thorough reviews once the card comes available forcing them to do more on the quality analysis department rather than just marketing & pr department's overclock-repackage-ship (tm).
Not that I'd have much to complain about NVidia's quality with linux systems, but even so, there's just too much history about how companies with dominant market shares tend to start lacking in quality.
No. It not having an explicit solution has NOTHING to do with mathematical undecidability. I can calucate iteratively any solution you want to any accuracy want. There's nothing mathematically undecidable in all that.
The twist in it is in it's behaviour over time. With certain initial values the behaviour is chaotic (i.e. exponential time dependency on initial values).
and all undecidable problems are equivilent because solving any one of them would solve all the others.
I have to say that you obviously don't understand what it means for a problem to be undecidable. Read your precious book a tad more.
Slashdot Mirror
That letter is Lambda, which is the notation used in Chemistry to denote the half-life of a radioactive isotope.
Incidentally, they use the lower case lambda, since using upper case would look like and upside down V, which people would probably think was just an A and Valve had "stylized" it.
The lower case lambda is the decay constant of a radioactive substance. It's inversly proportional to half-life, yes, but it's not the same thing.
The capital lambda is a lot of things, but none of them has anything to do with radioactive half-life.
Halflife refers to the amount of time it takes for a radioactive substance to decay to 1/2 of its mass.
Erm, no. It's the time it takes for the activity to drop to it's half. Which is naturally in direct relation to the number radioactive atoms, but since they don't, as you probably very well know,
mysteriously vanish, but rather change form to other atoms. The mass of a radioactive blob does change, yes, but that should not be mixed with halflife.
For a vodkaphile on a budget nothing beats pearl vodka, it's smoother than Grey Goose and costs only ~$20/750ml. Hell I'm not on a budget anymore but I still see no reason to waste $30 per bottle =) Itgoest through A "five-time distillation and six-time filtration process" which makes it exceptionally smooth.
Five-time distillation?
Now, that's an outright lie if I've ever seen one.
One of the quickest definitions of prime is "A number divisable only by 1 and itself.". 1 satisfies this.
Well, that post of mine was iself a reply to a reply to my post. Having read that you might have understood me better.
That won't work. Unless you change the forementioned huge amount of theorems, starting from the fundamental theorem of arithemitcs.
The most commonly used definition is "a prime has exactly two factors. Itself and one." Therfore 1 is not a prime. 1 not being a prime, simplifies numerous theorems. (e.g. the fundamental theorem of arithmetics, which states "Any positive integer can be represented in exactly one way as a product of primes." If 1 was a defined to be a prime that would have to modified. It can be done, but the consesus these days is that it's just easier to define 1 not to be a prime.
No wonder these interesting "scientific research results" keep showing up.
Sorry, but I won't buy it. With that jackass on the steering wheel, we all know damn well what the US stance will be in all this for the next four years.
People seem to forget about this when talking about wind or solar power, they are made from natural resources too. Mining trucks need to dig up the copper, steel, and aluminium, the nasty mines are still going to be around. The chemical belching factories are going to have to refine it. Enormous assembly plants are going to have to put it together. Fuel burning trucks are going to ship them to there assemlby site.
How does a freaking coal plant differ from that?
Clean energey can't come out of thin air. Or well, wind farms are as close to that as we can get.
Which method of power production has the lowest Total Environmental Impact per KwH from mining till the facility is junked?
Between a coal and wind plants? Take freaking wild guess!
According to the article these non-polluting wind farms would make the arctic colder...Bonus!
Depends on your point of view. And since mine is in Finland, I dare say that it's really not a bonus, it's freaking cold enough in here already.
1 is not prime by definition. You could consider 1 prime, but then you'd have a different concept that wasn't "prime." (though very close)
Excuse me?
Sadly you're just an ac, because now I'll never get to hear what this "primeness" would be that 1 is so close to. Your comment really is just an insult to either me or you, and I'm guessing you didn't mean it either way so I'm assuming it's you. Thenagain, you may have had a hunch you were on thin ice, posting as ac the way you did.
Yeah, all those people seem to be under the delusion that one is prime... The number one is neither prime nor composite though (you'd think the mathematician in the joke would know that).
Actually, 1 not being a prime is more of a consensus than a mathematical fact.
Primes could be defined so that 1 is also a prime, it's just that way too many theorems we have these days would need to be refined to deal with 1 properly (starting with the fundamental theorem of arithmetics). Which is almost the same as to say, things are easier when 1 is not regarded a prime. But that doesn't imply that 1 is not a prime.
One could argue that it would be more practical if a positive interger would either be a composite or a prime. Because positive integers now split into three classes: Primes, composites and 1. Meaning that negating prime theorems for composites require special handling with 1.
Now, I wouldn't go telling anyone that 1 is a prime. But I'd be lieing if tried to claim that I remember to include it as an option when I'm assuming a number to be a prime when I've discovered that it's not a composite. Moreover, I must admit that, deep down, I do think of it as prime. It's just that the consensus is to leave it out of the equations, just like when we hop from N to Z+, to make things a little bit easier.
3) Profit! Uh... No. Actually, after a: selecting NFS from the list and b: requesting (DHCP-enabled networks) or specifying an IP address, c: enter the NFS server's IP address and the NFS path where the ISO images are located (not the mount point, the actual path from the root -- e.g. /var/local/nfs/fedora/tettnang/
I always do it that way, but...
Are others having problems with the network set up?
The install exits with signal 11 here, with or without dhcp. And the box is a vanilla i386 with a really vanilla 3com network card.
Now, the only problem is the torrent only gives me 30KB download speed;(.
... for quite some time now, it's been sluggish as hell. I have no idea why, p2ps and other sources have provided me all the bandwidth I've wanted, even now 4 ftp sites are pushing 800k down, so I've never really looked into it, but still, it makes me wonder what's going on, because I'd be more than happy to contribute with the upstream we have here.
Yeah, I've been experiencing similar things with torrent for months now. I have +10Mbps up/down streams here and I remember those ~1Mbyte up/down sessions with bittorrent, but
Others experiencing sluggishness with bt? Has something changed with bt during the past year?
If you run yum with '-C' it will use its local cache instead of looking for new headers on the servers.
True, but it won't make it much faster. The time is actually spent checking the dependency tree cache. The new header check is a blink inspite of how it appears on screen.
Then again, apt is not any faster in that. Checking a dep tree of 2000 packages just simple takes time. Only, IIRC, "apt-get install" skips some checks, whereas "yum install" doesn't.
Even so, I am wondering that can't the common case be made faster.
Didn't mean it that way. I've borrowed from someone else, too, years ago. And I've seen it being used left and right across then net. No need to change on my account. It was just funny to see again as someone else's sig.
deja vous sig ? :)
cheers, one of the truly better posts. made my day.
Correct me if I'm wrong, but isn't there also a Portland in Maine? Portland, Oregon would be reasonable though. The state is not mentioned in the article, by the way, though it does say 'Northwest'.
;-)
and there's the remark about the constant raining, which points even more towards Oregon than the north-west remark, even when compared to Maine.
What on earth could Tom's do better with more time? Another graph? Please. I want to know clock speeds and RAM size, general performance metrics, and if it'll fit in my case. Anything else is pretty pointless. If Tom's can't get that done in the same amount of time as the HUNDREDS of other enthusiast sites out there, then that's their problem. If they can do it, but not with quality, guess what? Still their problem.
Now let's see. Driver stability? Picture quality issues and artifacts? Compatibility with recent games? Overall article reliability?
I'm not saying no one should post zero-day reviews. If you just want to approximately compare it to your card, fine, but if you're looking for information about wether to actually buy the damn thing the zero-day reviews are a waste of ether. But what you're saying sounds like there'd be no need for thorough testing by a distinguished hw sites.
Besides, I feel a lot more comfortable that NVidia and Ati both will know that Tom will post thorough reviews once the card comes available forcing them to do more on the quality analysis department rather than just marketing & pr department's overclock-repackage-ship (tm).
Not that I'd have much to complain about NVidia's quality with linux systems, but even so, there's just too much history about how companies with dominant market shares tend to start lacking in quality.
For a 50% cut I can set up thousands of porns sites if someone in china can claim that $240 per url...
Loading from the legendary Commodore C64 disk drive was load "something",8,1. From the tape drive it was ,1,1.
That was back in... well for me it was 1984 and onwards.
>> So.. where's the killer open source RCS?? Open source is supposed to be about good no-frills development tools!
> Download Eclipse and the CVS plugin.
I'm forced to asume one of us, you or me, have no idea what "no-frills" means...
tla/arch is Tom Lord's Arch?
Did we really need another three letter acronym for that?
The serial code for Half-Life is 14 digits, meaning a total of 289.254.654.976 possible combinations..
I must be running low on coffee, but how do you make 14 digits into that?
There are more than 30 alphanumerics (37) and even 30 raised to 14 is some 4.8E20. Heck, 10^14 is more than your number.
Naturally there's some some redundancy digits there, but even so... 14 alphanumerics is lengthwise a safe key for computer games.
why emerge it if you don't have place to submerge it?
Luckily Mitsubishi was smart enough to not sell Mitsubishi Pajero under that name in spanish speaking countries.
the 3 body problem is undecidable, right?
No. It not having an explicit solution has NOTHING to do with mathematical undecidability. I can calucate iteratively any solution you want to any accuracy want. There's nothing mathematically undecidable in all that.
The twist in it is in it's behaviour over time. With certain initial values the behaviour is chaotic (i.e. exponential time dependency on initial values).
and all undecidable problems are equivilent because solving any one of them would solve all the others.
I have to say that you obviously don't understand what it means for a problem to be undecidable. Read your precious book a tad more.