## Search found 62 matches

- Mon Feb 22, 2016 5:01 pm UTC
- Forum: Coding
- Topic: IDEs and the death of the command line interface
- Replies:
**25** - Views:
**7923**

### Re: IDEs and the death of the command line interface

it just seems to me like the majority of the real work isn't going to benefit, and most of the rest (in my experience) actually suffers from "stop helping me dammit!" syndrome when I use a full-fledged IDE. This summarizes why I've started to gravitate towards text editors instead of IDEs...

- Sat Dec 13, 2014 5:10 pm UTC
- Forum: School
- Topic: Getting a second bachelor's online? (In CS)
- Replies:
**3** - Views:
**6702**

### Getting a second bachelor's online? (In CS)

I have a bachelor's in pure math and a master's in applied math, and I currently have a pretty good job. But the industry I work in is tumultuous, so I worry that massive layoffs may come without warning. Long story short, I'm starting to seriously think about getting a second bachelor's degree to m...

- Sat Dec 13, 2014 4:56 pm UTC
- Forum: School
- Topic: Does anyone feel like previous levels don't prepare you?
- Replies:
**19** - Views:
**15478**

### Re: Does anyone feel like previous levels don't prepare you?

Speaking as a former university math teacher, yes, yes, yes, a thousand times, yes. I was very frustrated and often amazed by what my students didn't already know. But it also depends greatly on their high school as well as their own individual work ethic. Many people come out of high school without...

- Thu Nov 27, 2014 10:51 pm UTC
- Forum: Science
- Topic: Evolution: Random or intentional?
- Replies:
**187** - Views:
**24961**

### Re: Evolution: Random or intentional?

Thanks, everyone! That definitely clarifies it.

- Thu Nov 27, 2014 5:34 pm UTC
- Forum: Science
- Topic: Evolution: Random or intentional?
- Replies:
**187** - Views:
**24961**

### Evolution: Random or intentional?

I'm sure this question's probably been asked before, on numerous boards, but I couldn't find it. I'm reading about Geology, and I'm becoming confused about something that I thought I already understood about evolution. I've been under the impression that genetic mutations are random, and that whethe...

- Tue Sep 10, 2013 4:42 am UTC
- Forum: Mathematics
- Topic: Confusion on question concerning matrix norms
- Replies:
**3** - Views:
**1221**

### Re: Confusion on question concerning matrix norms

Thanks, I greatly appreciate it. I just finished a kinda-sorta proof of it just now, one that needs to be really tightened, maybe even thrown out. But, I do understand the concept now, and I see why it has to be true; just having a little trouble articulating it.

Again, thanks!

Again, thanks!

- Tue Sep 10, 2013 1:11 am UTC
- Forum: Mathematics
- Topic: Confusion on question concerning matrix norms
- Replies:
**3** - Views:
**1221**

### Confusion on question concerning matrix norms

I kind of feel guilty that I only come here when I need help. If this is inappropriate, go ahead and ignore this and I'll leave quietly. Anyway, this is leading up to a homework question, but it's actually not the proof itself that I'm confused about, but the hypothesis. I can't help but wonder if t...

- Sat Aug 24, 2013 8:05 pm UTC
- Forum: Mathematics
- Topic: S subset N, exists an r in N such that if r in S then S=N
- Replies:
**14** - Views:
**3680**

### Re: S subset N, exists an r in N such that if r in S then S=

Well, I kinda/sorta get it now, both from this and from a description that another officemate gave me. It caused quite a discussion in the department lounge yesterday.

Thanks everyone, I appreciate it.

Thanks everyone, I appreciate it.

- Fri Aug 23, 2013 8:14 pm UTC
- Forum: Mathematics
- Topic: S subset N, exists an r in N such that if r in S then S=N
- Replies:
**14** - Views:
**3680**

### S subset N, exists an r in N such that if r in S then S=N

Sorry for the weird title. Today in my A. Calc class, my professor gave us a diagnostic quiz for logic, and this is how I remember one of the questions. When I get it back I'll make it verbatim, but I can't help but think that I must be interpreting this wrong. Let S be a subset of N . Show that the...

- Mon Apr 15, 2013 3:26 pm UTC
- Forum: Individual XKCD Comic Threads
- Topic: 1199: "Silence"
- Replies:
**107** - Views:
**15646**

### Re: 1199: "Silence"

I have recently come to think that 4'33'' performed by Victor Borge would be rather amusing. Best idea ever. I would also like to see Jerry Lewis performing it on a typewriter. One of the earlier quotes said they expected it to be Simon and Garfunkel's "Sound of Silence." I kind of wonder...

- Thu Mar 07, 2013 6:53 pm UTC
- Forum: Mathematics
- Topic: A->A^(-1) is continuous (A. Calc)
- Replies:
**8** - Views:
**1526**

### Re: A->A^(-1) is continuous (A. Calc)

Oh, ok, that makes perfect sense, then. Thanks so much!

--Andrew

--Andrew

- Thu Mar 07, 2013 6:43 pm UTC
- Forum: Mathematics
- Topic: A->A^(-1) is continuous (A. Calc)
- Replies:
**8** - Views:
**1526**

### Re: A->A^(-1) is continuous (A. Calc)

Well, the open part makes sense to me, it's the statement of continuity that's confusing me. Sorry I wasn't very clear about it last night (I was crazy tired), but the thing that's really confusing me is how we can say that "A->A -1 is continuous," because A and A -1 aren't sets, as far as...

- Thu Mar 07, 2013 1:46 am UTC
- Forum: Mathematics
- Topic: A->A^(-1) is continuous (A. Calc)
- Replies:
**8** - Views:
**1526**

### A->A^(-1) is continuous (A. Calc)

Hi, I'm reading Rudin's "Principles of Mathematical Analysis," and there's a theorem here that I really don't understand, so I was wondering if anybody could help explain it to me. It's Theorem 9.8, p. 209. It could just be really basic, but I'm just not understanding it. I can't seem to g...

- Mon Feb 04, 2013 3:21 pm UTC
- Forum: Mathematics
- Topic: (HW) Equicontinuous and pt-wise convergence implies uniform
- Replies:
**7** - Views:
**3486**

### Re: (HW) Equicontinuous and pt-wise convergence implies unif

My apologies for taking so long to respond (I had a lot of non-school stuff to deal with over the weekend). I did eventually figure it out (not on my own), and I learned that the proof from the book on page 158 is very similar (and did use exactly the hint that you guys gave me, which helped me to u...

- Thu Jan 31, 2013 11:30 pm UTC
- Forum: Mathematics
- Topic: (HW) Equicontinuous and pt-wise convergence implies uniform
- Replies:
**7** - Views:
**3486**

### Re: (HW) Equicontinuous and pt-wise convergence implies unif

Thank you both very much. I am going to work on that the first chance I get, and report back (hopefully tonight, but I work kind of slowly).

- Thu Jan 31, 2013 7:55 pm UTC
- Forum: Mathematics
- Topic: (HW) Equicontinuous and pt-wise convergence implies uniform
- Replies:
**7** - Views:
**3486**

### (HW) Equicontinuous and pt-wise convergence implies uniform

I have a homework problem that I can't even begin to figure out. It's from Rudin's "Principles of Mathematical Analysis," p 168 #16. I actually have an unofficial pdf of solutions that I found online, but I'm very reluctant to look at it because I really want to do the majority of the work...

- Wed Dec 05, 2012 1:50 pm UTC
- Forum: Individual XKCD Comic Threads
- Topic: 1143:"Location"
- Replies:
**84** - Views:
**45959**

### Re: 1143:"Location"

Shows what I know. I thought his house was next to a Tiberium field.

- Wed Apr 18, 2012 4:25 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 1044: “Romney Quiz”
- Replies:
**213** - Views:
**53901**

### Re: 1044: “Romney Quiz”

Ok, all politics aside, I think it's awesome that Randall was able to make a stick figure picture look so much like Mitt Romney without even drawing a face. And it's not just the hair, it's the shape. Even if the name hadn't been there, I think we all would have recognized it.

- Mon Nov 14, 2011 7:01 am UTC
- Forum: School
- Topic: Opinion on makeup quizzes/tests?
- Replies:
**18** - Views:
**4155**

### Re: Opinion on makeup quizzes/tests?

Apologies for not following up before now-- That's a very bad habit of mine on forums, especially during the semester when I've got a million things on my mind. At any rate, I appreciate the thoughts very much. Since next semester is still a little while away I've got some more time to think about t...

- Tue Oct 18, 2011 3:41 am UTC
- Forum: School
- Topic: Opinion on makeup quizzes/tests?
- Replies:
**18** - Views:
**4155**

### Opinion on makeup quizzes/tests?

I'm a TA, and this is the first semester I'm teaching a course in Algebra 2 (it's sort of a remedial math class, I'd hate to say that but it's true, for students that didn't do great on the ACT), and I was wondering what people's opinion on makeup quizzes/tests are (opinions from anybody-- students ...

- Mon Sep 26, 2011 5:14 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 0956: "Sharing"
- Replies:
**82** - Views:
**23167**

### Re: 0956: "Sharing"

This is one of my all-time favorites.

- Sun Sep 18, 2011 11:49 pm UTC
- Forum: Science
- Topic: Motion of damped, driven harmonic oscillator (HW problem)
- Replies:
**8** - Views:
**2321**

### Re: Motion of damped, driven harmonic oscillator (HW problem

Ok, I haven't disappeared, just so you know, sorry it took me so long to respond. I've actually been working on some of the other problems for this class. :\ Yes, you've both been extremely helpful, and you have my undying loyalty. I'm still kind of trying to figure it out, (to tell you the truth, i...

- Thu Sep 15, 2011 9:32 pm UTC
- Forum: Science
- Topic: Motion of damped, driven harmonic oscillator (HW problem)
- Replies:
**8** - Views:
**2321**

### Motion of damped, driven harmonic oscillator (HW problem)

Before I go into this, I want to give a disclaimer that this is a homework problem. It's technically a math class, "Mathematical Modeling," but it involves physics and I am soooo not a physics guy. The problem is out of the book The Nature of Mathematical Modeling by Neil Gershenfeld. It g...

- Tue Aug 23, 2011 2:39 pm UTC
- Forum: Mathematics
- Topic: A quick Matlab (Student Version) Copy Protection question
- Replies:
**3** - Views:
**1913**

### Re: A quick Matlab (Student Version) Copy Protection questio

Thanks, that puts my mind at ease. This particular class (Mathematical Modeling) should just have an introduction to Matlab, nothing too serious, so I won't need any of the extra packages (at least not yet), but I'm also aware that Matlab is a thousand times better than Octave anyway, and a good inv...

- Tue Aug 23, 2011 3:01 am UTC
- Forum: Mathematics
- Topic: A quick Matlab (Student Version) Copy Protection question
- Replies:
**3** - Views:
**1913**

### A quick Matlab (Student Version) Copy Protection question

Sorry for the stupid question; I did some research on Matlab's DRM and most of my questions have been answered, but I don't know exactly how to Google this one. I know that Matlab (Student Version) requires activation and can at most be installed on two computers, so I'd like to install it on my des...

- Tue Aug 02, 2011 3:04 am UTC
- Forum: Mathematics
- Topic: Need help with a (silly) argument
- Replies:
**16** - Views:
**2644**

### Re: Need help with a (silly) argument

One thing a system allowing division by zero is good for is an array programming language. For instance you may have an array 0 1 .. 10 and want to apply the multiplicative inverse to it: it'd be annoying if it threw an error for any such array; much nicer to just get inf 0.5 .. 0.1. J uses _ for i...

- Sat Jul 30, 2011 6:15 pm UTC
- Forum: Mathematics
- Topic: The Batman equation
- Replies:
**27** - Views:
**32680**

### Re: The Batman equation

rjb, that's kinda-sorta similar to what I got in Maxima, except yours is closer to correct. draw2d(ip_grid=[100,100],ip_grid_in=[20,20], implicit( ((x/7)^2 * sqrt(abs(abs(x) - 3)/(abs(x) - 3)) + (y/3)^2 * sqrt(abs(y + (3 * sqrt(33))/7)/(y + (3 * sqrt(33))/7)) - 1) * (abs(x/2) - ((3 * sqrt(33) - 7)/1...

- Sat Jul 30, 2011 8:05 am UTC
- Forum: Mathematics
- Topic: The Batman equation
- Replies:
**27** - Views:
**32680**

### Re: The Batman equation

I tried it in Maxima and got much less successful results. Maybe it's a limitation of Maxima, but I also could very well not be using it correctly. It was almost the Batman logo, it was just deformed.

- Sat Jul 30, 2011 5:39 am UTC
- Forum: Mathematics
- Topic: Need help with a (silly) argument
- Replies:
**16** - Views:
**2644**

### Re: Need help with a (silly) argument

Well, I think this has been sufficiently answered by other posters, but I would essentially say that you cannot divide by zero in any algebraic ring, because dividing by zero means multiplying the multiplicative inverse of zero. As in, a \div 0 = a \cdot 0^{-1} . I could be wrong, but I imagine that...

- Sat Jul 30, 2011 5:00 am UTC
- Forum: Mathematics
- Topic: What's your routine when studying math
- Replies:
**15** - Views:
**2078**

### Re: What's your routine when studying math

I personally disagree with the posters that say that just sitting and reading the material is a waste of time, but that's a very personal thing. Some people like to read it, some people hate that. In my case, I read everything that I possibly can that's assigned to me. I have to, because I won't und...

- Tue Jul 26, 2011 4:14 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 0929: "Speculation"
- Replies:
**86** - Views:
**19655**

### Re: 929: "Speculation"

it's better because there's no farmville. What? Of course applications will only follow later! It's officially in a test stage! And even so, I simply never installed farmville - done. People are seriously strange. Ok, couple of things. First of all, applications will follow later, but we don't know...

- Wed Apr 13, 2011 7:37 am UTC
- Forum: Mathematics
- Topic: Getting my undergrad in math. How about you?
- Replies:
**51** - Views:
**7454**

### Re: Getting my undergrad in math. How about you?

Count me as someone who only comes to these forums sporadically and rarely posts. But this is probably the best math forum I've seen, so when I want to go to a math forum, this is the one I come to. All of the others I've been to only see visitors once every few days. Age: 24. Education: BS in Pure ...

- Mon Nov 16, 2009 6:06 pm UTC
- Forum: Religious Wars
- Topic: Upcoming OS Wars: Ubuntu 9.10 vs Windows 7
- Replies:
**94** - Views:
**739953**

### Re: Upcoming OS Wars: Ubuntu 9.10 vs Windows 7

I had a bunch of stuff in crontab that pops up xmessage windows... I've never actually heard about crontab, but you might want to try KAlarm. I use it for the same type of thing, for popup message reminders. I never had any problems with it in Karmic (though if you go back to Jaunty like I did that...

- Sun Nov 15, 2009 9:27 pm UTC
- Forum: Religious Wars
- Topic: Upcoming OS Wars: Ubuntu 9.10 vs Windows 7
- Replies:
**94** - Views:
**739953**

### Re: Upcoming OS Wars: Ubuntu 9.10 vs Windows 7

You mentioned you tried 4.0, Don't judge KDE by 4.0. I'll remember that. I hadn't kept up with KDE since 4.0, but it looks like 4.2 is available for Jaunty so I'll try that. I still wouldn't be able to move to Karmic because of Flash, though. To my knowledge, that problem wouldn't be any different ...

- Sun Nov 15, 2009 9:12 pm UTC
- Forum: Movies and TV Shows
- Topic: 2012
- Replies:
**60** - Views:
**5979**

### Re: 2012

Well, not that I believe it, but technically, you are leaving out something pretty important, and that is that Nostradamus predicted the world to end on the same day that the Mayan calendar ends even though he didn't know the Mayan calendar.

- Sun Nov 15, 2009 9:07 pm UTC
- Forum: Religious Wars
- Topic: What Media Player (software) Do you use?
- Replies:
**74** - Views:
**11304**

### Re: What Media Player (software) Do you use?

In that case, I might give 2.2 a try when the next Ubuntu comes out (I guess it might be 2.3 by then). I'm not installing Karmic for reasons listed in another thread

- Sun Nov 15, 2009 6:44 am UTC
- Forum: Movies and TV Shows
- Topic: 2012
- Replies:
**60** - Views:
**5979**

### Re: 2012

I've learned that I really don't like movies with mass death unless I feel like it goes somewhere. That probably sounds holier-than-thou, but I just don't like those movies. I also don't like the idea of a movie that will contribute to whatever hysteria comes about on Dec 29, 2012 (I think that's th...

- Sun Nov 15, 2009 6:36 am UTC
- Forum: Movies and TV Shows
- Topic: Shawshank redemption - why is it so good?
- Replies:
**27** - Views:
**10150**

### Re: Shawshank redemption - why is it so good?

Also, because it is narrated by Morgan Freeman. This is the beginning and the end of awesome. I don't think I would have liked it if it were narrated by Gilbert Gottfried. But, in all seriousness, I really liked this movie because it was one of those movies that focused on character development. So...

- Sun Nov 15, 2009 5:43 am UTC
- Forum: Religious Wars
- Topic: Opera, Chrome, Firefox, OR?
- Replies:
**544** - Views:
**209685**

### Re: Opera, Chrome, Firefox, OR?

The machine I'm using is a pretty cheap Dell, which I don't doubt contributes to how slow FF starts up. It's probably about a year and a half old. To tell you the truth, I don't understand the first sentence of your second paragraph, though :\ It's a little over my head tech-wise. And I'm not actual...

- Sun Nov 15, 2009 5:34 am UTC
- Forum: Religious Wars
- Topic: What Media Player (software) Do you use?
- Replies:
**74** - Views:
**11304**

### Re: What Media Player (software) Do you use?

"are you using gnome with amarok?" Yes, I'm using Gnome. I don't have KDE installed. I used to, but I didn't like it. At any rate, that's not really the reason I quit using it. I was half-kidding. I mean, it was ugly, but I never put any serious effort into finding out how to change it. I ...