Computer Science

Lately, I've been having trouble with the age old problem: laptop heat. After long periods of operation, it can get pretty toasty there, and my Dell either slows down to a snail's pace or shuts itself off. Anyone have any solutions? Homemade cooling solutions? Maybe it's time to get a new one? Thx:D

My family is getting a new laptop, and I was wondering if all the brilliant people here at SFN had a few suggestions, especially on specs. Since it's for my sister, who's going to college in a year, it'd be great if the comp had a perfect blend of power, mobility, and price. And cooling efficiency (I know, an impossible mix). Price comes first. Thanks to all beforehand.

hi can we use ant colony optimization (ACO) to solve other problems like nonlinear equation in mathematics? (in papers this algorithm useing for TSP problem ,etc) in general can we use heuristic algorithms in this problem ?

Interesting new Google project. Scalable, data-driven, Python-based web applications off their servers, built via a web interface, with up to 5 million hits per month for free. Yowsers. You can sure bet Microsoft is perking up at this one. http://code.google.com/appengine/docs/whatisgoogleappengine.html

I was wondering whether anybody here has experience in trying to make hardcoded parameters flexible. I'll explain a little bit of the situation to be more specific: Say I have a program that I have to run in handheld devices. When I have this program compiled, it propagates from the server to the devices. However I need to be able to update some parameters that are currently hardcoded into the code from the server as opposed to having to go to the code, change the values, recompile and have to propagate them again to the devices. Any suggestions? As you can tell, I am a complete novice so I would really appreciate some help and suggestions

Check this out. Someone is offering a cash prize for people who participate in the Stanford folding@home project. http://www.imminst.org/announcing-foldinghome-prize

I've got a report function in our local training system, where we enter the manager ID of a group, then the course code. This will pull who in that managers group has completed that course code and who has not. I'm trying to find a way to replace putting a (or multiple) specific course code (or codes) with a "begins with" logic that will pull all course codes beginning with a certain term. However, I've messed around a bit with wildcards (like * and %), but either the wildcards don't work, or my syntax is wrong. An example of an actual report url for a specific manager and a specific course is as follows: http: //OurTrainingSite/reports/mgr_drill_mu…

Well, I had an idea.. There are a lot of places offering script snippets in many different dev languages, but usually you get a script that is semi-good, then improve it, have to upload, no one finds which is better, etc. I was thinking of starting a snippet wiki, where the scripts are divided by categories of programming language (PHP, perl, C, etc) and by type categories (like tools, utilities, website operations, etc). The difference between what exists today and the idea of a wiki snippet is that the snippets in the wiki could be updated and upgraded by the users, so we might end up with snippets of shared-effort scripts that are better than what we usually fi…

Anyone familiar with CPU error codes, production pools thereof, knows of the command instruction set. And, the execution bit that is parametrically an execute flag. Now, what if, say, grounding circuits were introduced, board length*width. Hang with me here, it's nothing more than a dissipater coil. Here's what you do, calculate, at factory, voltage, calibrate. Induce algorithmic type encryption. Yes, serialize. Introduce as many errors as you feel, now, through known technology, introduce this grounding circuit. Which, if broken, triggers an embedded chip. Which, of course through error code or such as user required intervention signals. That's my idea…

Here's a little puzzle I discovered and am working on, although I've run out of ideas! I've got a .iso file, and I want to see the content of it. When I burn it to a CD, load it as a virtual CD, explore or extract with WinRAR, I get this every time: there is 1.76MB of data, yet only a 2kb file is visible. I know there are other files within this .iso file, but I can't find a way to see them. Something which I just noticed is that the file system is CDFS. I've look this up a little bit, but don't fully understand it, and don't understand how it can hide files on a CD, nor how even knowing this if, and if yes then how, I can view the files on the CD. …

I'm very new im only eleven i was hoping that you guys could teach me how to duplicate items for example on runescape

So, I like using LYX. Thing is, it won't give me two line breaks. Kind of how I'm breaking my sentences at this very moment. See! Another break! Ok, but really. I've been trying to go through the documentation, and I can't figureit out. I really don't like each of my sentences being so close, especially when I break off into a different topic. Anyone know how to manipulate LYX so I can get two line breaks?

Things that are actually connected to my computer : HDD: 80gb ata 160gb sata 500gb sata Cdrw drive dvd drive Things that device manager says are connected to my computer: all of the above plus a floppy drive Things that show up in "my computer": Floppy cdrw dvd 33.4gb hdd 74.5gb hdd 115gb hdd I'm confused. where is my freshly installed 500gb hard drive?

http://en.wikipedia.org/wiki/Artificial_neural_network#Spiking_neural_networks I've attempted to understand how polychronization via delays in the axons would allow for "potentially unlimited memory capacity" but I'm coming up with nothing here.

Who can tell me the difference between graphics and image>

Well, I've been programming in OOP (C++) for about 6 months, yet this problem has never come up, and I have no idea how to begin dealing with it. I'm attempting to write a program that can take information from a website, in this case a stock site, and input that data into my program. I need it to constantly update (request new information from the site). Is there a normal method/procedure for doing this? A link or tutorial would be fine, as well (I could not find what I was specifically looking for). I've reached an impasse the last week with this, and help of any kind would be limitlessly appreciated.

Dear All: I'm finishing my M.S., and the question about taking Ph.D. study is arising. I've been doing research in the field of theoretical computer science, so for me two ways are available: to be programmer or to get Ph.D study. I like both programming and computer science, but I don't know about working conditions in both of them. The key factor for me is a free time: I hate to be prisoner of my job, when job captures me, when it makes me spend evenings and nights by doing work. Money isn't so sufficient for me as free time, I want to have time for my family for my main hobbies - outdoor and photography. I have neither been programmer nor scientist, I would b…

I was given a question of the follwing: Consider the Baby Programming Language (BPL). It is a very simple programming language, whose syntax is given by the following grammar: S → WHILE B DO S ENDWHILE; | SS | A | P A → I := E; I → char(char)٭ E → digit | E + E | I P → PRINT I; B → TRUE | FALSE | E == E Give the parse (derivation) tree for : WHILE 4==3 DO PRINT x; x:=4; ENDWHILE; ex := 4; I'm really stuck. Somebody help!

I was given a question of the follwing: Consider the Baby Programming Language (BPL). It is a very simple programming language, whose syntax is given by the following grammar: S → WHILE B DO S ENDWHILE; | SS | A | P A → I := E; I → char(char)٭ E → digit | E + E | I P → PRINT I; B → TRUE | FALSE | E == E Give the parse tree for : WHILE 4==3 DO PRINT x; x:=4; ENDWHILE; ex := 4; I'm really stuck. Somebody help!

Here I am posting an explanation I have written of HDR (High Dynamic Range) Imagery. All feedback is welcome. Consider this like an un-official peer review. http://www.with-logic.co.uk/Stuff/HDR_Explained.doc

Can anyone recommend a free website provider that isn't geocities? I have books on HTML, so I don't need it to be one of those one where you choose from one of five bland generic templates, etc. I'd also appreciate it if you could mention why you think it's a good provider, as there seem so many to choose from, and I expect many of them to have "catches". Also, out of curiosity - if the providers let you make websites for free, and they don't include any ads of their own, how do they make money?

Howdy folks, This is a question regarding a problem that was assigned to my class about a week ago. No one in the class could solve it, and then when we asked the teachers, they couldn't either. Additionally, one of our teachers actually wrote a proof disproving the statements made in the problem. Let me preface the problem by saying that I have tried, extensively, to solve it - to the point of feeling like a complete dumbass for not being able to get it. I have asked quite a few other people, and no one has been able to come up with anything helpful. Let N be an NFA with k states that recognizes some language A. a) Show that, if A is nonempty, A conta…

i dont know what i did, but for some reason the cmd on my comp is disabled! when i open it it says COMMAND PROMPT HAS BEEN DISABLED BY SYSTEM ADMINISTRATOR whenever i press any key, regardless of what it is, cmd just closes does anyone know how to fix this? any help appreciated

hi! I can't seem to answer the following question and i'd be very glad if someone could help me out: is it possible that a regular language would be defined by an infinite regular expression? or, in other words, if L is a regular language, must the regular expression describing L be a finite one? thanks!

Hi, I am Praveen. I want to become a programmer. Currently, I am doing cbit from NIIT. Computer science is one of the subject in which many field, we can do in it.