Search found 128 matches

by theorigamist
Fri Jul 20, 2012 6:19 pm UTC
Forum: Hardware
Topic: Buying a new laptop - advice needed!
Replies: 7
Views: 9284

Re: Buying a new laptop - advice needed!

Do you have any size requirements (e.g., do you prefer a 14" screen to a 15" screen)? Do you need the laptop to be under a certain weight? Will you regularly be using the laptop for long periods of time away from an outlet? Are you set on the ThinkPad? Their upgrades to a discrete graphics...
by theorigamist
Fri Jan 20, 2012 8:13 pm UTC
Forum: Hardware
Topic: Timed button pressing device
Replies: 6
Views: 2416

Re: Timed button pressing device

might as well give the simplest idea a try first!

Speaking of which, have you thought about simply contacting an office administrator to simply leave the lights on while you're still there? That seems like the simplest idea.
by theorigamist
Mon Oct 10, 2011 2:49 am UTC
Forum: Hardware
Topic: DSLR advice
Replies: 18
Views: 4698

Re: DSLR advice

This is the lens I mentioned above. I like it quite a bit, and you can see plenty of examples around the web (or on my flickr page). I spent quite a bit of time debating between getting that or the Canon 10-22 as well as a couple other 3rd party lenses, and the f/2.8 on the 11-16 sold me. I was con...
by theorigamist
Sat Oct 08, 2011 2:55 pm UTC
Forum: Hardware
Topic: DSLR advice
Replies: 18
Views: 4698

Re: DSLR advice

I mainly do nature photography, landscapes and such. I'd also like to try my hand at star/astronomy photos You've chosen two areas of photography that tend to use some specialized equipment and have very little overlap. But in the short term, the Canon T2i with the 18-55mm kit lens plus, say, the C...
by theorigamist
Fri Oct 07, 2011 7:27 pm UTC
Forum: Hardware
Topic: DSLR advice
Replies: 18
Views: 4698

Re: DSLR advice

You can see a quick comparison of the Canon T3i, T2i, and T1i here and here . The advantages of the T3i over the T2i seem to be mostly in the movie mode, but the advantages of the T2i over the T1i are slightly more substantial (63-zone metering vs. 35-zone metering, choice of frame rates for video, ...
by theorigamist
Tue Sep 20, 2011 12:27 pm UTC
Forum: Coding
Topic: odd python question for a newb
Replies: 6
Views: 1537

Re: odd python question for a newb

I'm just going to guess the issue is integer division. In Python 2.7, 1/2 is 0, and 1.0/2 is 0.5.
by theorigamist
Fri Sep 16, 2011 6:52 pm UTC
Forum: Coding
Topic: [SOLVED] TeXLive on Windows Custom Package
Replies: 2
Views: 1561

Re: TeXLive on Windows Custom Package

Thanks for the help. I found the correct file at C:\texlive\2011\bin\win32\mktexlsr. Running that scripts recreates all of the ls-R files, and now my package works correctly.
by theorigamist
Fri Sep 16, 2011 1:41 am UTC
Forum: Coding
Topic: [SOLVED] TeXLive on Windows Custom Package
Replies: 2
Views: 1561

[SOLVED] TeXLive on Windows Custom Package

I've been digging through documentation for a while now, and I can't find an answer to this. I've got a .sty file at C:\texlive\texmf-local\tex\latex\mypackage\mypackage.sty. But when I \usepackage{mypackage} I get an error. Documentation suggests I need to rebuild the package index, but I can find ...
by theorigamist
Wed Aug 24, 2011 2:45 pm UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Re: Pricing a possible computer upgrade

It's just a mild annoyance, not worth spending money on. I've got the cable tied off to the side of the case, and it's certainly not inhibiting air flow. I'm more concerned about leaving off the rear I/O panel, but I think that should be okay. On an unrelated note, I just started memtest86+, and it'...
by theorigamist
Wed Aug 24, 2011 1:56 am UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Re: Pricing a possible computer upgrade

I ended up with the following build: - Intel Core i5-2500K - Asus P8Z68-V LE motherboard - EVGA GTX 550 Ti graphics card - 4x4GB Corsair memory - Cooler Master Silent Pro M600 power supply - Corsair Force 3 60GB SSD - 2x2TB Samsumg EcoGreen hard drives - Asus DVD burner I've built the computer, but ...
by theorigamist
Thu Aug 18, 2011 1:09 am UTC
Forum: Hardware
Topic: Never built a computer before - lots of questions
Replies: 22
Views: 7868

Re: Never built a computer before - lots of questions

I had a quick look at your list. The SSD looks like an older model, using SATA II instead of SATA III. There are SSDs out there with transfer rates beyond the capacity of SATA II. As for shaving a little money, I bet you could shave some money off of the graphics card without noticing much differenc...
by theorigamist
Wed Aug 17, 2011 3:05 pm UTC
Forum: Hardware
Topic: Never built a computer before - lots of questions
Replies: 22
Views: 7868

Re: Never built a computer before - lots of questions

This system guide might be a good starting place. Adding a SSD will keep you around budget.
by theorigamist
Sun Jul 31, 2011 12:54 am UTC
Forum: Hardware
Topic: Looking to buy a new computer
Replies: 5
Views: 1788

Re: Looking to buy a new computer

You shouldn't think it's your only option. You could, for example, take a prebuilt system like this one , and then spend the extra $100 on a better graphics card, such as this one . (Note: I'm not specifically recommending either of these products. They just showed up in quick searches at around the...
by theorigamist
Sat Jul 30, 2011 10:03 pm UTC
Forum: Hardware
Topic: Looking to buy a new computer
Replies: 5
Views: 1788

Re: Looking to buy a new computer

I second that. Building it yourself is really very simple to do. The manual that comes with the motherboard will tell you where to plug everything in, and there are countless guides/videos on the internet to give you advice. Also, $600 is the target for the Tech Report's budget system guide , so tha...
by theorigamist
Wed Jul 27, 2011 12:21 am UTC
Forum: Hardware
Topic: Wireless Router Recommendations
Replies: 17
Views: 3942

Re: Wireless Router Recommendations

Although my Netgear router can run DD-WRT (or Tomato, or some other open source firmwares), I've been using it with the stock firmware and it's been perfectly fine. I think at the time I bought it I read somewhere that the shared drive feature won't work with DD-WRT or Tomato firmware, so I stuck wi...
by theorigamist
Tue Jul 26, 2011 7:28 pm UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Re: Pricing a possible computer upgrade

It seems there was a recall of the Corsair Force 3 120GB drives due to some stability issues. I can't find any indication that this problem exists in the 60GB drive that's on sale at Newegg today. Also, thanks Endless Mike. I guess I'll eventually have to do a fresh install. EDIT: The Newegg deal wa...
by theorigamist
Tue Jul 26, 2011 5:23 pm UTC
Forum: Hardware
Topic: Wireless Router Recommendations
Replies: 17
Views: 3942

Re: Wireless Router Recommendations

I have this $70 router , which hasn't had any problems for me and is reviewed well at Newegg. This router also caught my eye. This may be the highest rated item I've every seen on Newegg. It averages 5 eggs with over 3400 reviews, and is a 46 time winner of the wireless router customer choice award....
by theorigamist
Tue Jul 26, 2011 5:12 pm UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Re: Pricing a possible computer upgrade

There's an upcoming deal on a Corsair Force Series 3 60GB SSD on Newegg. Judging from the one review that I've briefly looked through, this SSD seems comparable or better in performance to the OCZ Vertex 3 and Crucial m4 that I had been considering. Is this correct? If so, I may buy the SSD today (d...
by theorigamist
Mon Jul 25, 2011 8:11 pm UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Re: Pricing a possible computer upgrade

My last computer build was my first build from scratch, so this will be the first time I've transferred some parts to a new build, and I have a few questions that are probably basic: 1. I may not buy the SSD right away. (Newegg sold out of the daily deal on the M4 before I pulled the trigger.) If I ...
by theorigamist
Fri Jul 22, 2011 1:27 am UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Re: Pricing a possible computer upgrade

So here are a couple tradeoffs regarding the pagefile. First: if you have a non-SSD, put the pagefile there. You don't want the system paging to your SSD if you can help it, speed benefits notwithstanding. If you are going to cut it down to 2 GB or 4GB with 16GB RAM, I think you should consider eli...
by theorigamist
Fri Jul 22, 2011 12:05 am UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Re: Pricing a possible computer upgrade

The P67 board has 2 USB 3.0 headers, which you could connect to the front of your PC or use a bracket on the back. The Z68 board that I linked to before also has 2 USB 3.0 headers, and both boards have 2 rear-panel USB 3.0 ports. The cheaper Z68 board just had fewer USB 2.0 on the rear panel, but i...
by theorigamist
Thu Jul 21, 2011 11:09 pm UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Re: Pricing a possible computer upgrade

why would you lean towards P67? Becuase the P67 board has: Three x16 (x8, x8, and x?) PCIe slots, while the z68 has two (x16, x4) What looks to be more robust power circuitry for the CPU Two more SATA ports (6Gbps) Intel networking (instead of Realtek) Bluetooth (instead of none) Two PS/2 ports (in...
by theorigamist
Thu Jul 21, 2011 5:11 pm UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Re: Pricing a possible computer upgrade

I found the following link that suggests the HD 6770 will enable GPU acceleration in Photoshop. I've dug around the Intel website a bit, but I can't determine if the integrated graphics will meet the requirements for GPU acceleration. Maybe I'll just hold off buying the graphics card and see how the...
by theorigamist
Thu Jul 21, 2011 1:36 pm UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Re: Pricing a possible computer upgrade

I don't do any gaming, so I can guarantee that I won't need SLI support. Do the Asus P67 boards have a higher rate of failure since the B3 stepping bug was fixed, or are you referring to that bug? I believe the bug has been fixed in the board I linked above, and I haven't read about any similar prob...
by theorigamist
Wed Jul 20, 2011 11:23 pm UTC
Forum: Hardware
Topic: Pricing a possible computer upgrade
Replies: 20
Views: 3155

Pricing a possible computer upgrade

My current computer has an Intel E8400, 4GB DDR2, and a 9500GT. When I originally built it a few years ago, my primary use was media consumption. Now I've gotten into photography as a hobby, and I notice a significant slow down while editing RAW files in Photoshop. At first I thought I'd just throw ...
by theorigamist
Thu May 19, 2011 10:15 pm UTC
Forum: Hardware
Topic: Home theater speakers
Replies: 15
Views: 6479

Re: Home theater speakers

I'm not sure how this thread was brought back from the dead, but I made this purchase a year and a half ago.
by theorigamist
Mon May 02, 2011 8:23 pm UTC
Forum: Mathematics
Topic: Infinite Index Question
Replies: 4
Views: 2669

Re: Infinite Index Question

The problem certainly wants you to show that every nontrivial subgroup of the integers has finite index. In fact, all nontrivial subgroups of the integers are of the form nZ for some integer n, and the quotients are the finite cyclic groups. By the way, "proper" is irrelevant. Yakk almost ...
by theorigamist
Sat Apr 23, 2011 3:47 am UTC
Forum: Hardware
Topic: New Laptop Recommendations
Replies: 29
Views: 8437

Re: New Laptop Recommendations

I can't speak towards build quality (since I don't own one), but on specs and price, you should probably consider the System 76 Gazelle.
by theorigamist
Mon Mar 21, 2011 1:57 pm UTC
Forum: Mathematics
Topic: Combination Problem
Replies: 10
Views: 2821

Re: Combination Problem

To clarify: no consecutive numbers rules out 123456, but are you also ruling out 654321?
by theorigamist
Fri Feb 18, 2011 3:15 am UTC
Forum: Mathematics
Topic: Does anybody know what this problem is called?
Replies: 9
Views: 1528

Re: Does anybody know what this problem is called?

Applying the operation to numbers one at a time isn't enough; my above counterexample still works. Also, in this case the operation isn't well-defined. You need to tell us when to apply the operation to which numbers. If you change the operation to the sum of the neighbors minus twice the number, ob...
by theorigamist
Thu Feb 17, 2011 11:21 pm UTC
Forum: Mathematics
Topic: Does anybody know what this problem is called?
Replies: 9
Views: 1528

Re: Does anybody know what this problem is called?

First let me make sure I understand your operation correctly. Start with the tuple (a,b,c,d,e) (where a and e are also neighbors). Then the operation applied to (a,b,c,d,e) yields (b+e-a, a+c-b, b+d-c, c+e-d, d+a-e). Is this correct? If so, then your claim is false. The starting tuple (-1,-1,-1,-1,-...
by theorigamist
Tue Feb 15, 2011 8:33 pm UTC
Forum: Mathematics
Topic: Is this a meaningless math question?
Replies: 24
Views: 2856

Re: Is this a meaningless math question?

It's not a meaningless question, and the answer is 0. In fact, the probability that a number chosen at random from the set of all real numbers is RATIONAL is also 0, because the rationals form a set of measure 0.
by theorigamist
Sat Feb 12, 2011 4:41 pm UTC
Forum: Hardware
Topic: Repetetive Strain, CTS and other maladies [Survey]
Replies: 17
Views: 3611

Re: Repetetive Strain, CTS and other maladies [Survey]

I voted no problems. I'm using: - Logitech K350 keyboard - Logitech wireless performance mouse MX - when not using my desktop, Asus Eee PC 1000. I've had no problems, but I do find myself occasionally rotating my Logitech mouse. Not as much as enk, but with my index finger on the scroll wheel instea...
by theorigamist
Fri Feb 11, 2011 10:23 pm UTC
Forum: Mathematics
Topic: "nontrivial subgroups" (terminology question)
Replies: 7
Views: 2282

Re: "nontrivial subgroups" (terminology question)

The group consisting of a single element, {e}, is called the trivial group. Usually, nontrivial subgroup means subgroup not isomorphic to the trivial group (that is, (a)). Frequently, nontrivial subgroup is used to mean proper, nontrivial subgroup. You shouldn't worry too much about the distinction....
by theorigamist
Fri Feb 11, 2011 8:22 pm UTC
Forum: Hardware
Topic: Headphones broke...again.
Replies: 12
Views: 2869

Re: Headphones broke...again.

I've had my Sennheiser HD 280 pros for four or five years. There's no wear and tear at all. They're fantastic headphones. But you said the pair that just broke were sports headphones. Are you looking for something you can workout with? If so, I wouldn't recommend the 280s, because the cushions will ...
by theorigamist
Mon Jan 03, 2011 3:05 am UTC
Forum: Hardware
Topic: Webcam Audio Delay
Replies: 1
Views: 840

Webcam Audio Delay

I've been looking into getting a webcam, and I've noticed looking at sample videos that they all seem to have a very noticeable delay between the audio and the video. (You can see examples in the video reviews here .) Can anyone recommend webcams that aren't susceptible to this? Can this be fixed in...
by theorigamist
Fri Dec 17, 2010 8:58 pm UTC
Forum: Mathematics
Topic: Counting Order Preserving Functions
Replies: 20
Views: 2653

Re: Counting Order Preserving Functions

Talking to the department head may help make the teacher more effective in the long run, but it otherwise doesn't particularly help your situation right now. I disagree with this. There is usually a "chain of command" for students to climb when they feel as if they have been wronged. Perh...
by theorigamist
Fri Dec 17, 2010 2:50 pm UTC
Forum: Mathematics
Topic: Counting Order Preserving Functions
Replies: 20
Views: 2653

Re: Counting Order Preserving Functions

If this wasn't an isolated incident, and if the teacher is frequently wrong or deducts points for correct work, then you should talk to the department head. If this was an isolated incident, or has happened only a couple of times, I'd stick it out (because combinatorics is worth it), but make sure t...
by theorigamist
Fri Dec 17, 2010 4:37 am UTC
Forum: Mathematics
Topic: Counting Order Preserving Functions
Replies: 20
Views: 2653

Re: Counting Order Preserving Functions

It sounds like this is at the college level? What is the class? Is the teacher a professor, or a grad student?
by theorigamist
Fri Dec 17, 2010 1:08 am UTC
Forum: Mathematics
Topic: Counting Order Preserving Functions
Replies: 20
Views: 2653

Re: Counting Order Preserving Functions

You are right (there are five order-preserving functions, and they are the five you listed), and your teacher is wrong. You can see here that, as Tirian said, partial orders are reflexive by definition. f(1) = 1, f(2) = 1 is not order preserving because 2 is not less than 1 A function is order-prese...

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