## Search found 335 matches

Sat Nov 19, 2011 6:34 am UTC
Forum: The Help Desk
Topic: Combining Two Audio Outputs into Headphones?
Replies: 1
Views: 1331

### Combining Two Audio Outputs into Headphones?

I have two devices with audio outputs (1/4 and 1/8 inch, female) and a pair of headphones (1/8 inch, male, with 1/4 inch adapter). I would like to connect all 3 together in the most reasonable way (i.e. hear both outputs through the headphones). What are some simpler options for this? The two audio ...
Sun Nov 13, 2011 10:52 pm UTC
Forum: Computer Science
Topic: Sparse (Pseudo) Infinite Grid Data Structure for Web Game
Replies: 4
Views: 3306

### Re: Sparse (Pseudo) Infinite Grid Data Structure for Web Gam

Thank you guys for the responses so far. I was also thinking about tree structures that I had remembered from taking a computer graphics class. I just want to say that I may be overstating the size and sparseness of the grid here. It could probably be held in a memory as an array, even if that shoul...
Sun Nov 13, 2011 5:10 am UTC
Forum: Computer Science
Topic: Sparse (Pseudo) Infinite Grid Data Structure for Web Game
Replies: 4
Views: 3306

### Sparse (Pseudo) Infinite Grid Data Structure for Web Game

(Cross-posted to Stack Overflow) I'm considering trying to make a game that takes place on an essentially infinite grid. * The grid is very sparse. Certain small regions of relatively high density. Relatively few isolated nonempty cells. * The amount of the grid in use is too large to implement naiv...
Thu Nov 03, 2011 5:53 pm UTC
Forum: Logic Puzzles
Topic: Buying from an untrusted person
Replies: 12
Views: 3159

### Re: Buying from an untrusted person

If he is actively willing to trade at rate r, then he must value the two at a rate less than r. Every small trade he makes at rate r, say for x units, gains him some arbitrary measure u utils. For him to steal your last x units is worth say v utils. Combine the unknown transaction end with a proper ...
Mon Oct 24, 2011 2:31 am UTC
Forum: Coding
Topic: Anyone else participating in the AI Challenge?
Replies: 4
Views: 1321

### Re: Anyone else participating in the AI Challenge?

It feels a lot more like a board game than anything else. Dunno if that's supposed to be a good thing.
Sat Oct 15, 2011 1:52 am UTC
Forum: The Help Desk
Topic: Properties of Pascal's triangle assignment help.
Replies: 4
Views: 2361

### Re: Properties of Pascal's triangle assignment help.

This isn't exactly related to Pascal's triangle Um, take a look at nC2. :shock: Wait, why does this work? (Preferably a more intuitive reason than they just happen to always be equal.) I had learned it a few times independently of nCr. EDIT: Googled http://jeremykun.wordpress.com/2011/10/02/n-choos...
Tue Oct 11, 2011 2:02 am UTC
Forum: The Help Desk
Topic: Properties of Pascal's triangle assignment help.
Replies: 4
Views: 2361

### Re: Properties of Pascal's triangle assignment help.

This isn't exactly related to Pascal's triangle

Code: Select all

`   1 +  2   +  3 +  4 + .. +  n+ n + n-1 + ..     3  +  2  + 1---------------------------------------------= n+1 + n+1 + ...= n(n+1)`

Then, 1 + 2 + 3 + ... + n-1 + n = n(n+1)/2
Tue Oct 11, 2011 1:59 am UTC
Forum: The Help Desk
Topic: Looking for VPS, Server Setup, and Domain Name Advice
Replies: 2
Views: 1880

### Looking for VPS, Server Setup, and Domain Name Advice

So I'm looking for a multipurpose personal server of sorts. Some things I'd like to do include, but are not necessarily limited to: * personal website hosting (dynamic content) * personal code hosting (servlets, ad hoc servers) * personal portfolio * SSH tunnel (for public WiFi hotspots) * Linux-bas...
Sun Sep 18, 2011 9:41 pm UTC
Forum: The Help Desk
Topic: Trouble installing an OS to an empty hard drive
Replies: 13
Views: 2164

### Re: Trouble installing an OS to an empty hard drive

I would also recommend getting a larger flash drive and installing something more mainstream like Ubuntu. The combination of hardware support and large user community make it an easier experience as a new user.
Sun Sep 18, 2011 9:39 pm UTC
Forum: The Help Desk
Topic: Port Blockage
Replies: 2
Views: 788

### Re: Port Blockage

Sounds like your router is blocking the connection. If it was your computer, you would have the same problem on any network. Without further information, it would be hard to say what particular connection is being attempted. Google isn't giving me much help here, but it may be a poor choice of keywo...
Mon Sep 12, 2011 6:39 pm UTC
Forum: The Help Desk
Topic: SSH to a machine behind NAT?
Replies: 2
Views: 1268

### Re: SSH to a machine behind NAT?

Thanks for the info. That's a very cool concept.

It turns out, my router is configurable. Was just a lot stranger than I expected, but the tech support people seem to have gotten used to it by now.
Mon Sep 12, 2011 6:25 pm UTC
Forum: Coding
Topic: Best features of pastebins and repository web interfaces?
Replies: 12
Views: 2267

### Re: Best features of pastebins and repository web interfaces

Contextual links are great. If the source is referencing another file or another place in the file (includes, function calls, even just variables), it's a ton easier if it's just clickable.
Mon Sep 12, 2011 2:05 pm UTC
Forum: The Help Desk
Topic: SSH to a machine behind NAT?
Replies: 2
Views: 1268

### SSH to a machine behind NAT?

I have a machine behind a router which refuses to cooperate. I am unlikely to be able to accept any incoming connections ever. I would like to be able to SSH to this machine from outside. If necessary, I can probably get a shell account somewhere which allows incoming connections. However, that woul...
Mon Sep 12, 2011 1:55 pm UTC
Forum: The Help Desk
Replies: 3
Views: 1305

naschilling wrote:Have you considered the option of just hosting your own? Even a virtual machine would be adequate.
Sure. Main downside is that I don't back up anything nearly as often as I should. Of course, that begs the question of why I keep all the rest of my files on my machine.
Sun Sep 11, 2011 3:04 pm UTC
Forum: The Help Desk
Replies: 3
Views: 1305

I think I'm going to start working on some coding related stuff that may not end up so pretty. It's the sort of thing I'd rather not have indexed and associated with my name on the Internet for the next time I need to find a job. Can anyone recommend somewhere to get hosting for version control? Git...
Thu Sep 01, 2011 10:36 pm UTC
Forum: Coding
Topic: Where to software freelance
Replies: 2
Views: 1017

### Where to software freelance

I am a recent college grad in computer science who is planning to start in a full time position soon. I am looking for ideas where I could get some light freelance work to expand my horizons. I'm mainly looking to get to see interesting things. I'm aware the pay sucks, but minor supplemental income ...
Mon Aug 29, 2011 12:37 am UTC
Forum: The Help Desk
Topic: Suddenly 200KB/s?
Replies: 6
Views: 1825

### Re: Suddenly 200KB/s?

My best guess is, everyone else finished moving in and you're sharing the network with them.
Sun Aug 21, 2011 6:24 pm UTC
Forum: Hardware
Topic: Recommend an Android Phone
Replies: 16
Views: 2806

### Re: Recommend an Android Phone

Cheaper is better, but phone costs (especially after rebate) are pretty small compared to plan costs. If a pricier phone has practical benefits, I would definitely consider it.

Are dual core phones out already? What would I possibly do on a phone that's multithreaded?
Sun Aug 21, 2011 5:28 am UTC
Forum: The Help Desk
Topic: Linux distros?
Replies: 13
Views: 3482

### Re: Linux distros?

I should have qualified that statement. Source based distros are another story entirely. Starting off with Gentoo or Slackware is probably a very, very bad idea. I think I should have said, "modern distro with package manager and repository support". At that point, relatively few things ne...
Sun Aug 21, 2011 5:24 am UTC
Forum: The Help Desk
Topic: Google searches redirect to fake search engine
Replies: 10
Views: 2404

### Re: Google searches redirect to fake search engine

Also, http://free.antivirus.com/hijackthis/

Actually using it is a bit tricky. It doesn't distinguish between legitimate and not.
Sun Aug 21, 2011 5:21 am UTC
Forum: Coding
Topic: What's the purpose of PyPy?
Replies: 6
Views: 1813

### Re: What's the purpose of PyPy?

Ok, but if you're going to JIT the code anyway, why are you targeting the same language it came from? I understand projects trying to JIT Python into Java bytecode or LLVM or something, but this seems just strange. Wouldn't you at best be transparent and run as fast as the underlying implementation?...
Sun Aug 21, 2011 5:12 am UTC
Forum: Coding
Topic: What's the purpose of PyPy?
Replies: 6
Views: 1813

### What's the purpose of PyPy?

PyPy was described to me as an implementation of Python in Python. I completely fail to understand what purpose this could serve. If someone had presented me with the idea in isolation, I would have written it off as an elaborate hoax or troll. If one already has a Python interpreter, what is the pu...
Sun Aug 21, 2011 5:10 am UTC
Forum: Hardware
Topic: Recommend an Android Phone
Replies: 16
Views: 2806

### Re: Recommend an Android Phone

There are a couple things that are mostly up to your own personal preferences. What do you think about virtual vs physical keyboards (e.g. slide-out keyboards)? How 'bout size of the phone (do you like big or portable)? Thanks. I don't have enough experience to know the pros and cons of each. All e...
Sun Aug 21, 2011 5:09 am UTC
Forum: The Help Desk
Topic: Google searches redirect to fake search engine
Replies: 10
Views: 2404

### Re: Google searches redirect to fake search engine

A reinstall is definitely the cleanest approach. A potential solution if you don't know what specifically is affecting you is to check all startup programs. There are tools to help you do this such as msconfig and http://www.mlin.net/StartupCPL.shtml . Best to just disable everything you don't speci...
Sun Aug 21, 2011 4:11 am UTC
Forum: The Help Desk
Topic: Linux distros?
Replies: 13
Views: 3482

### Re: Linux distros?

I currently use Ubuntu, and I would recommend Ubuntu to people as a good choice for a first distro. In particular, the useful features for your case are: * good hardware support out of the box * large community of support * codecs and such are in the repos Most things will be the same regardless of ...
Sun Aug 21, 2011 4:07 am UTC
Forum: Hardware
Topic: Recommend an Android Phone
Replies: 16
Views: 2806

### Recommend an Android Phone

I'm looking to get an Android based phone sometime soon. I was wondering if anyone had any recommendations. I will be getting it with one of those 2 year contracts that gives you a rather large rebate. So the low end ones will be free or nearly free, and the high end ones will require me to pay a bi...
Sun Aug 21, 2011 3:21 am UTC
Forum: The Help Desk
Topic: Google searches redirect to fake search engine
Replies: 10
Views: 2404

### Re: Google searches redirect to fake search engine

Reinstalling would be the safest option. Stuff like this has a nasty habit of not quite completely going away. It appears there is a specific tool for removing this problem. http://support.kaspersky.com/faq/?qid=208280684 http://www.bleepingcomputer.com/virus-removal/remove-tdss-tdl3-alureon-rootkit...
Fri Aug 12, 2011 10:43 pm UTC
Forum: Coding
Topic: Finding A Coding Job w/ Programming Puzzles
Replies: 2
Views: 1480

### Finding A Coding Job w/ Programming Puzzles

I have seen a few companies that provide programming puzzles as a way for potential job candidates to get noticed. I feel this could be my strong point, and I am wondering what other such companies are out there. If anyone knows about such opportunities, please let me know. Thanks. For reference, I ...
Sun Aug 07, 2011 11:37 pm UTC
Forum: The Help Desk
Topic: Strange Connection Problem
Replies: 9
Views: 1536

### Re: Strange Connection Problem

This still makes no sense. I've given up and blamed the hardware/drivers because there's no good reason why two clients behind the same router should get different behavior, even though both are fine on pretty much every other network. On the bright side, I'm getting internet fine by going through m...
Sat Aug 06, 2011 1:30 am UTC
Forum: The Help Desk
Topic: Strange Connection Problem
Replies: 9
Views: 1536

### Re: Strange Connection Problem

It's using Firefox 4. It's got a brand new install of Fedora 15. It was previously running last year's Ubuntu which was fine with this network. Then, I installed F15 and suddenly it has the same problem that the Windows XP install did.
Fri Aug 05, 2011 6:19 pm UTC
Forum: The Help Desk
Topic: Strange Connection Problem
Replies: 9
Views: 1536

### Re: Strange Connection Problem

Clarifications: Nothing loads in the web browser of the affected machine. All other machines behind the same router are fine. The affected machine has a static IP (due to other bug) and all other config are the same. My DNS and gateway are both set to be the router 192.168.1.1 but this works fine fo...
Fri Aug 05, 2011 4:27 pm UTC
Forum: The Help Desk
Topic: Strange Connection Problem
Replies: 9
Views: 1536

### Strange Connection Problem

OK, so this whole setup has major issues. The driver and the access point hate each other. I would consistently get dropped right after I authed. (As in, the driver works with other APs, and the AP works with other clients.) So many headaches this morning. Apparently this was due to somebody screwin...
Tue Jul 12, 2011 7:19 pm UTC
Forum: Mathematics
Topic: Why can't I do this? (Infinite sets and cardinality)
Replies: 14
Views: 4683

### Why can't I do this? (Infinite sets and cardinality)

This has been bugging me since yesterday, ever since another math class decided to revisit Cantor's argument. So, I have the set of integers and the set of real numbers. I understand Cantor's diagonalization argument, although I seem to be missing some details about why it necessarily has to apply. ...
Sun May 15, 2011 10:20 pm UTC
Forum: The Help Desk
Replies: 4
Views: 1164

I tried using Google but I'm probably putting in the wrong keywords. You know how you can make an ad-hoc wireless network? I need something of the sort with a wired connection. Preferably, I want to do something with my other computer so that this computer can connect directly to it as if it were a ...
Thu May 12, 2011 7:51 pm UTC
Forum: The Help Desk
Topic: Bandwidth: How much does one person need?
Replies: 13
Views: 7161

### Re: Bandwidth: How much does one person need?

Most of the time, I've been on a connection similar to your cheapest option there. It's been fine for most things. Of course, some things -- especially big downloads -- come at a bit of a wait, but I didn't see that issue often. I imagine most people would be fine with this cheapest package. I also ...
Tue Apr 26, 2011 3:40 am UTC
Forum: The Help Desk
Topic: Running a persistent process on Linux
Replies: 12
Views: 4086

### Re: Running a persistent process on Linux

EvanED wrote:Two ways. One, start the program with 'nohup'. Just prefix the command line with 'nohup'. Standard out will go to 'nohup.out'.

Two, start the program normally, then background it with ctrl-z. Then do 'disown <pid>' (or something like 'disown %1' to disown job number 1).

Thank you!
Tue Apr 26, 2011 3:23 am UTC
Forum: The Help Desk
Topic: Running a persistent process on Linux
Replies: 12
Views: 4086

### Running a persistent process on Linux

How can I start something from a shell that will run in the background, even after the shell that started it has died? For example, I want to SSH into a VPS, run a server, and have it remain up after I log out. Ideally, this should not require me to use root/sudo. Also, how is it different if I want...
Thu Feb 17, 2011 10:51 am UTC
Forum: Computer Science
Topic: Optimizing a Jorinapeka solver
Replies: 10
Views: 2656

### Re: Optimizing a Jorinapeka solver

You're making the game quite a bit harder by removing the objective tiles. It's a lot easier to work backwards from said tiles and seeing where you can get, because the branching factor for this is a lot smaller.
Thu Jan 27, 2011 4:35 am UTC
Forum: The Help Desk
Replies: 9
Views: 1712