Most of the standard numerical methods, finite difference/finite element methods, don't seem to work very well in the case of variable wave speed at different points in the domain, which is exactly the case that I need.
As far as I know, when you have such kind of problem, you have to precondition your matrices. Google for preconditioning.
Sure, since Debian releases take so long that their names get lost in the memory of time. Their names are nevertheless professionally biased as well (woody, potato, sarge...).:P
PS: I agree with your points, but couldn't help making the joke.
They've simply learned that the market supporting two high-end video formats simultaneously is unlikely (see Beta vs VHS) and so are unwilling to invest in a format that will soon die.
Easy choice then: just take the technically worst one. Or just take the non-SONY one.
Couldn't agree more.
In my company we used to develop inhouse specific software for several unices (Silicon graphics, AIX, HP-UX, Solaris and RedHat Linux). It was tedious to check the software anywhere, but I also state that you gained a lot in quality since some bugs only raised at several platforms (and if you did not correct them, they finally raised somehow in the future around the other platforms).
Now we only do Linux, and I miss that platform variety. Fortunately, now we have two platforms again: 32bit and 64bit linux; and believe me, lots of bugs have been solved with the 64bit porting.
I would further drop Debian, Gentoo and RedHat from the list of distros that a newbie would try by herself. Don't get me wrong, they are wonderful distros but if you know nothing about Linux, probably you will end up trying Ubuntu nowadays. If you have a linux-friend, she may suggest you Fedora, OpenSUSE, or Mandriva. If she is your enemy - and you don't know about it - she may suggest you Gentoo:-P
And as for Knoppix... without dumping all the credit of being the first usable liveCD distro I would say that now people probably tries Ubuntu as well since it is also live.
Seriously, I think that Ubuntu has nowadays the highest share of newcomers market, and talking about the lots-of-distros confusion to newcomers is nonsense. I can be wrong with my Ubuntu bias, but I strongly feel that, at most, newcomers face the doubt among 4 distros at most.
:) I began programming with a 48K spectrum. But when I studied 2nd course of my career I purchased a brand new HP48SX (they become available to the public just that year, 1 year older mates had an HP28s).
The solver feature was crucial to pass thermodynamics exams. Then I began programming gases formulas, which I nested comfortably in the equations to solve. Finally I learnt how to program the thing, and I spent a lot of time with that machine. Too bad the ON key has stopped working. I miss my HP, (nevertheless x48 is a good substitute)
Carbon fiber is much less dense than metal, which reduces the weight of the plane. True, but most important, carbon fiber has mhch higher strength than aluminum alloys. Thus, the wing can be designed with higher aspect-ratio.
Higher aspect ratio means better aerodynamics because induced drag is reduced. But, on the other side, higher aspect ratio means higher structural loads because of flexion.
As a result, there is an optimum aspect ratio: higher aspect ratios would require reinforced structure which would increase the airplane weight and anulate the aerodynamic benefit. By using carbon fiber, the optimum point is at higher aspect ratios now and the airplane will consume less fuel.
With aluminum alloys, the aspect ratios are nowadays about 9 (wingspan/mean_aerodynamic_chord). With carbon fiber, perhaps we can go further than 10!.
Not my case. I love growing up my children. But is a really costly task in terms of time.
Maybe you are right and some people become frustrated as you say... hope it is not the most common case!.
Also oldest kid is given more attention during first years and she will be more stimulated by her parents than younger siblings coming afterwards. When younger siblings born, parents are focussed in older son as well, so they not have all the resources (time) they "spent" on the first son. At least, this is my experience. With 3 children@home, I'm pretty run out of time lately...
You would not believe that the Air Force or any other branch of the government would reveal the stealth fighter (F-117) and the stealth bomber (B-2) to the public and the world, if they did not already have something much more advanced and in production, did you?
Unless you are pretty sure that the rest of the world won't be able to match your weapons in a long long period of time, and you want to use them as propaganda right now in order to:
a) Scare your enemies.
b) More probably, make your population feel "secure".
I'm not sure if they have something else in production, but I agree that they have several concepts and things in investigation/development.
When are router manufacturers going to start requiring people to use WPA security? Yes, sure. By the way, do you know how easy is to crack wireless security by sniffing some hundreds of megabytes? Not saying you should not use encryption, just that wireless security is far from being perfect.
[...]and the use of the root login over the internet! You are right. For the record, the way to tunnel rsync with ssh is like this (just adding "-e ssh" to the command line):
Oblivion runs under normal WINE as good as on windows (except the water is purple instead of blue, huh), Obviously, it is rendering wine instead of water.
Nice joke. However, during the race, the aerodynamic drag lowers because of heading cars. Thus if everything is OK -perhaps- there won't be a difference of 5.5 miles per every race hour.
As a software developer why you should work twice more (OSX intel / OSX ppc) to produce a piece of software that will work on roughly 2-3 % of the desktop computers out there? I understand your point, but my personal experience developing software for several unices is that having several platforms is a good idea since some bugs arise at some platforms and others at other ones, so your software quality gets improved. Also, as already pointed the work is not twice the work but a bit more - and that "a bit more" consists in correcting bugs that happen only at one platform (but which could randomly happen at other one at any time).
Not pretending to be a professional 3D modeler, I was scared to learn Blender by myself because all the times I tried I did not succeed because the interface is difficult to learn alone.
There exist tutorials over the net, but most of the time I am offline and I did never take care of printing them. Furthermore, tutorials tend no to cover all the features, so it is hard to know which ones you are actually interested in.
Finally, I bought a book of Blender and during an afternoon I learnt quite a lot -enough to create a piston body the day after- . It is not difficult at all if you have some guide, really. The problem with Blender is to know her "phylosophy" or way of work. Once you get taught, it becomes incredible easy.
Requiring administrative/root privileges to install software is the whole point. You are installing programs that are to be used system-wide. You need root privileges (granted to you via sudo) to do that. It's not a security hole when implemented properly.
The key point here is that you do not should install software downloaded elsewhere, but from the repositories which have the software signed. As far as you trust in the repositories, you are safe. Of course adding 3rd_party/unsigned/customized/blah-blah repositories is a high risk just comparable to run "setup.exe" in a windows machine with superuser privileges; but a bit lower one since the lower number of bad-guy-idiots targeting ubuntu/linux.
As far you use only software from universe/multiverse you are safe when installing software with apt/synaptic.
Slashdot Mirror
As far as I know, when you have such kind of problem, you have to precondition your matrices. Google for preconditioning.
PS: I agree with your points, but couldn't help making the joke.
I personally do not use LaTeX directly:
www.lyx.org
Yes, the derivative matters!
Couldn't agree more. In my company we used to develop inhouse specific software for several unices (Silicon graphics, AIX, HP-UX, Solaris and RedHat Linux). It was tedious to check the software anywhere, but I also state that you gained a lot in quality since some bugs only raised at several platforms (and if you did not correct them, they finally raised somehow in the future around the other platforms). Now we only do Linux, and I miss that platform variety. Fortunately, now we have two platforms again: 32bit and 64bit linux; and believe me, lots of bugs have been solved with the 64bit porting.
I would further drop Debian, Gentoo and RedHat from the list of distros that a newbie would try by herself. Don't get me wrong, they are wonderful distros but if you know nothing about Linux, probably you will end up trying Ubuntu nowadays. If you have a linux-friend, she may suggest you Fedora, OpenSUSE, or Mandriva. If she is your enemy - and you don't know about it - she may suggest you Gentoo :-P
And as for Knoppix... without dumping all the credit of being the first usable liveCD distro I would say that now people probably tries Ubuntu as well since it is also live.
Seriously, I think that Ubuntu has nowadays the highest share of newcomers market, and talking about the lots-of-distros confusion to newcomers is nonsense. I can be wrong with my Ubuntu bias, but I strongly feel that, at most, newcomers face the doubt among 4 distros at most.
:) I began programming with a 48K spectrum. But when I studied 2nd course of my career I purchased a brand new HP48SX (they become available to the public just that year, 1 year older mates had an HP28s). The solver feature was crucial to pass thermodynamics exams. Then I began programming gases formulas, which I nested comfortably in the equations to solve. Finally I learnt how to program the thing, and I spent a lot of time with that machine. Too bad the ON key has stopped working. I miss my HP, (nevertheless x48 is a good substitute)
(c) The magnificent HP-48
Higher aspect ratio means better aerodynamics because induced drag is reduced. But, on the other side, higher aspect ratio means higher structural loads because of flexion.
As a result, there is an optimum aspect ratio: higher aspect ratios would require reinforced structure which would increase the airplane weight and anulate the aerodynamic benefit. By using carbon fiber, the optimum point is at higher aspect ratios now and the airplane will consume less fuel.
With aluminum alloys, the aspect ratios are nowadays about 9 (wingspan/mean_aerodynamic_chord). With carbon fiber, perhaps we can go further than 10!.
Not my case. I love growing up my children. But is a really costly task in terms of time.
Maybe you are right and some people become frustrated as you say... hope it is not the most common case!.
Also oldest kid is given more attention during first years and she will be more stimulated by her parents than younger siblings coming afterwards. When younger siblings born, parents are focussed in older son as well, so they not have all the resources (time) they "spent" on the first son.
At least, this is my experience. With 3 children@home, I'm pretty run out of time lately...
a) Scare your enemies.
b) More probably, make your population feel "secure".
I'm not sure if they have something else in production, but I agree that they have several concepts and things in investigation/development.
So the login process and data transfer are protected by the ssh encryption.
FLoating point OPeration(S) per second
Now, I don't press the Preview button and we can keep going on :-P
Nice joke. However, during the race, the aerodynamic drag lowers because of heading cars. Thus if everything is OK -perhaps- there won't be a difference of 5.5 miles per every race hour.
Warning: do not trust Russian applications, they might put a finger on you...
Not pretending to be a professional 3D modeler, I was scared to learn Blender by myself because all the times I tried I did not succeed because the interface is difficult to learn alone.
There exist tutorials over the net, but most of the time I am offline and I did never take care of printing them. Furthermore, tutorials tend no to cover all the features, so it is hard to know which ones you are actually interested in.
Finally, I bought a book of Blender and during an afternoon I learnt quite a lot -enough to create a piston body the day after- . It is not difficult at all if you have some guide, really. The problem with Blender is to know her "phylosophy" or way of work. Once you get taught, it becomes incredible easy.
Use the ssh, Luke.
provided he has installed the beta instead of being running the Live-CD
The key point here is that you do not should install software downloaded elsewhere, but from the repositories which have the software signed. As far as you trust in the repositories, you are safe. Of course adding 3rd_party/unsigned/customized/blah-blah repositories is a high risk just comparable to run "setup.exe" in a windows machine with superuser privileges; but a bit lower one since the lower number of bad-guy-idiots targeting ubuntu/linux.
As far you use only software from universe/multiverse you are safe when installing software with apt/synaptic.