Search found 107 matches

by GyRo567
Wed Feb 06, 2013 11:25 pm UTC
Forum: Comics/Graphic Novels
Topic: What happened to Abstruse Goose?
Replies: 9
Views: 22777

Re: What happened to Abstruse Goose?

Well he likes his privacy, so we can respect that. I'm just glad he's got his blue cap back on.
by GyRo567
Thu Apr 19, 2012 8:38 am UTC
Forum: Mathematics
Topic: Math Books
Replies: 378
Views: 253592

Re: Math Books

I've heard great things about their books on complex & Fourier analysis (the one on functional analysis just recently came out, so I don't know anything about it), but the real analysis text is not particularly good. If you want an introduction to Lebesgue integration & measure theory, Royde...
by GyRo567
Wed Mar 30, 2011 5:59 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0879: "Lamp"
Replies: 151
Views: 33776

Re: 0879: "Lamp"

xkcd reaches a new low of crassness & mediocrity. :(
by GyRo567
Fri Mar 25, 2011 8:27 pm UTC
Forum: Mathematics
Topic: Ever felt "off your game" mathematically?
Replies: 15
Views: 2417

Re: Ever felt "off your game" mathematically?

achan1058 wrote:Welcome to grad school?

And remember that almost everyone else feels exactly the same way. Don't let impostor syndrome get you down, but don't use it as an excuse not to study like crazy either.
by GyRo567
Tue Mar 22, 2011 4:02 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0875: "2009 Called"
Replies: 111
Views: 51207

Re: 0875: "2009 Called"

I'm unsure whether to think this clever or a bit of a 'too soon, man' thing.
by GyRo567
Sun Mar 06, 2011 4:47 am UTC
Forum: Mathematics
Topic: Binary representtion of prime numbers
Replies: 15
Views: 6450

Re: Binary representtion of prime numbers

Things like AKS (deterministic) & Miller-Rabin (even faster, but only known to be probabilistic until the generalized Riemann hypothesis is settled) generally come about through the very method which is used to prove their reliability; so yes, these primality tests have proofs.
by GyRo567
Wed Feb 16, 2011 5:36 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0861: "Wisdom Teeth"
Replies: 116
Views: 25929

Re: 0861: "Wisdom Teeth"

I enjoyed the alt-text.
by GyRo567
Sun Jan 09, 2011 10:30 pm UTC
Forum: Mathematics
Topic: Did we invent or "discover" math?
Replies: 3
Views: 1794

Re: Did we invent or "discover" math?

The problem is that, unless you invent certain axioms which make it true, the sum of the interior angles of a triangle is not [necessarily] 180 degrees. It's true in Euclidean geometry, but that requires the creation of certain axioms.
by GyRo567
Fri Jan 07, 2011 8:13 pm UTC
Forum: Mathematics
Topic: Real numbers and uncountability.
Replies: 29
Views: 2842

Re: Real numbers and uncountability.

skeptical scientist wrote:Seriously, have you ever seen a definition of "set" which both made intuitive sense and was free from paradox?

I've never seen a satisfactory definition of any logical primitive, in that sense. And I agree that consistency is actually a relatively weak claim to make.
by GyRo567
Fri Jan 07, 2011 7:14 am UTC
Forum: Mathematics
Topic: Real numbers and uncountability.
Replies: 29
Views: 2842

Re: Real numbers and uncountability.

When you say unambiguous, do you mean anything more than the basic properties associated with natural numbers? Because I should think any logicist development of the natural numbers provides a non-circular construction (at least once you get past the informal language) which is sufficient to do numb...
by GyRo567
Fri Jan 07, 2011 5:09 am UTC
Forum: Mathematics
Topic: Where to start studying math?
Replies: 13
Views: 2763

Re: Where to start studying math?

Since elementary number theory (note that 'elementary' does not mean it's always easy) is very accessible, especially with what you've already covered, and since you've got a computer science background, you might find the applications of number theory to cryptography quite interesting. Either way, ...
by GyRo567
Thu Jan 06, 2011 9:14 am UTC
Forum: Mathematics
Topic: Can anyone explain forcing to me?
Replies: 3
Views: 791

Re: Can anyone explain forcing to me?

That's a pretty great explanation for a single post! I haven't had time to read either of these, but a couple of books that you might try are the original Paul Cohen book, Set Theory & the Continuum Hypothesis (cheap & Dover), and Kenneth Kunen's Set Theory: An Introduction to Independence P...
by GyRo567
Fri Dec 31, 2010 5:53 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0841: "Audiophiles"
Replies: 266
Views: 47241

Re: 0841: Audiophiles

This is the best comic Randell had in a long while.. I literally laughed out loud. This comic was funny to me even tho I read it on an old CRT monitor, take that videophiles. CRTs are still better for a lot of things, especially if you're using them for gaming. 320kbps is absolutely pointless- you'...
by GyRo567
Thu Dec 30, 2010 4:53 am UTC
Forum: Mathematics
Topic: Math Books
Replies: 378
Views: 253592

Re: Math Books

I think you might be panicking prematurely, especially with the background you already have.

Edit: If you want a slower paced book for reference, Brown & Churchill's Complex Variables with Applications is excellent, though it has different ordering of topics.
by GyRo567
Fri Dec 17, 2010 10:00 am UTC
Forum: Mathematics
Topic: Strange integral
Replies: 11
Views: 1735

Re: Strange integral

What's even stranger, is that a similar function, called Thomae's function , is Riemann integrable! f(x)= \begin {cases} \frac{1}{q} & \text{if } x=\frac{p}{q} \text{ is rational} \\ 0 & \text{if } x \text{ is irrational} \end{cases} This function is discontinuous only at rational po...
by GyRo567
Mon Dec 13, 2010 5:24 am UTC
Forum: Mathematics
Topic: Modern Cryptanalysis
Replies: 12
Views: 3836

Re: Modern Cryptanalysis

Many a cryptosystem has been broken simply because the designers thought that they can keep the details a secret. The cryptosystem used on DVDs by the commercial parties failed for this reason (and they didn't consult any real cryptographers). DRM in general is easier to crack, and will never be se...
by GyRo567
Mon Dec 13, 2010 5:05 am UTC
Forum: Mathematics
Topic: Crazy numbers
Replies: 17
Views: 3499

Re: Crazy numbers

Ooooh, those are synonymous with the perplex numbers. Very fun stuff. Many of the properties of the surreal numbers also hold when you disregard the restriction that the elements of the left set must be less than all the elements of the right set. Conway calls these objects 'games', although Knuth j...
by GyRo567
Tue Dec 07, 2010 2:59 am UTC
Forum: Mathematics
Topic: Putnam 2010!
Replies: 12
Views: 3135

Re: Putnam 2010!

You can get B5 by noticing that f is infinitely differentiable (though you'll only make use of the 2nd derivative) because each derivative can be written as a composition/product of f. Then since f' > 0 everywhere, you can write f' = e^h for some continuous function h, which you know nothing of---ex...
by GyRo567
Wed Nov 24, 2010 5:38 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0824: "Guest Week: Bill Amend (FoxTrot) "
Replies: 127
Views: 30575

Re: 0824: "Guest Week: Bill Amend (FoxTrot) "

Calvin is clearly biased. All the works whose primary form was a painting were high art, and all those whose primary form was a comic were low art. (This is strange because Calvin likes comics.) Calvin was only a devise for satire. Bill Waterson's comic is clearly some of the greatest art out there...
by GyRo567
Wed Nov 24, 2010 5:28 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0824: "Guest Week: Bill Amend (FoxTrot) "
Replies: 127
Views: 30575

Re: 0824: "Guest Week: Bill Amend (FoxTrot) "

black_hat_guy wrote:Well, when you think about it, the first strip is a Foxtrot strip inside an xkcd strip, and the rest are xkcd strips inside Foxtrot strips inside xkcd strips. That seems to be in the spirit of xkcd.

"An xkcd inside a FoxTrot, inside an xkcd. Low art." ~Calvin
by GyRo567
Wed Nov 24, 2010 5:03 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0824: "Guest Week: Bill Amend (FoxTrot) "
Replies: 127
Views: 30575

Re: 0824: "Guest Week: Bill Amend (FoxTrot) "

Most excellent! :)

It's great to have a real FoxTrot strip, and even better that it's also an xkcd.
by GyRo567
Wed Nov 17, 2010 5:22 am UTC
Forum: Mathematics
Topic: Continuum Hypothesis
Replies: 14
Views: 1791

Re: Continuum Hypothesis

phlip wrote:Not a pretty function, but still a bijection.

I actually quite liked it.
by GyRo567
Sun Nov 14, 2010 4:48 am UTC
Forum: Mathematics
Topic: How difficult is a Real Analysis class?
Replies: 79
Views: 19422

Re: How difficult is a Real Analysis class?

bitsplit wrote:[Analysis] was, however, one of the most rewarding experiences in my undergraduate adventures, along with Number Theory.

I'm quoting this to add emphasis.
by GyRo567
Sun Nov 14, 2010 4:42 am UTC
Forum: Mathematics
Topic: Tips for how to study undergrad math the right way?
Replies: 32
Views: 3556

Re: Tips for how to undergrad math studies the right way?

It's always a good idea to read some mathematics on your own time. Being familiar with a bit of analysis or abstract algebra before taking a rigorous course in either subject, for example, is always a good idea. Knowing alternative approaches to the same area of mathematics can lend some (often much...
by GyRo567
Fri Oct 29, 2010 4:57 am UTC
Forum: Mathematics
Topic: Math Books
Replies: 378
Views: 253592

Re: Math Books

Introduction to Analysis by Maxwell Rosenlicht is a cheap little Dover book, and it has more explanatory power than baby Rudin. Or you could just try to work through the two Rudin books. (Or Royden for Lebesgue integration/measure theory)
by GyRo567
Mon Sep 13, 2010 12:48 am UTC
Forum: Mathematics
Topic: Proving a function analytic
Replies: 6
Views: 4997

Re: Proving a function analytic

Well for complex functions it's easier, isn't it? Exactly because complex differentiable and analytic coincide. It seems it would be much harder for functions from R to R? Depending on your meaning with the word 'coincide', we should be careful to add that there are complex functions differentiable...
by GyRo567
Sat Sep 11, 2010 6:23 pm UTC
Forum: Books
Topic: Kindle, Nook, E-Reader and other Ebooks
Replies: 106
Views: 25358

Re: Kindle, Nook, E-Reader and other Ebooks

Ordinarily I'd agree (my house is full of such makeshift products---for instance, a turntable hinge replaced by Knex), but among the Nook cases is one that reads as the first page of Alice's Adventures in Wonderland. Which is something you can also see on the Kindle beneath it.
by GyRo567
Fri Sep 10, 2010 5:04 am UTC
Forum: Books
Topic: Kindle, Nook, E-Reader and other Ebooks
Replies: 106
Views: 25358

Re: Kindle, Nook, E-Reader and other Ebooks

Kindle 3 acquired & awesome. It is most excellent.

Anyway, just thought I'd mention here (B&N had a sale on accessories today) that the Kindle 3 is small enough to fit snuggly into Nook cases, which tend to be a bit cheaper.
by GyRo567
Tue Aug 31, 2010 4:47 am UTC
Forum: Mathematics
Topic: Math Books
Replies: 378
Views: 253592

Re: Math Books

I thought it very strange that new concepts were taught in brief paragraphs in the problem sets.
by GyRo567
Wed Aug 25, 2010 4:43 am UTC
Forum: Mathematics
Topic: Help me name my (mathsy) pottery business.
Replies: 15
Views: 3251

Re: Help me name my (mathsy) pottery business.

Topfology if you have any German customers...?
by GyRo567
Wed Aug 18, 2010 7:59 pm UTC
Forum: Mathematics
Topic: Favorite math jokes
Replies: 1452
Views: 468738

Re: Favorite math jokes

Bruenor wrote:The mathematician calmly replied, "Have patience. I'm just a simple pole in a complex plane."

I am so using this! :]
by GyRo567
Wed Jul 28, 2010 9:46 pm UTC
Forum: Mathematics
Topic: Thank you for #435
Replies: 42
Views: 5021

Re: Thank you for #435

There's also a webcomic (sadly ended now) entirely about mathematics & written by a female graduate student.
http://brownsharpie.courtneygibbons.org/

The "You haven't earned the right!" shirt always gathers laughs when I walk through the math building. (& puzzlement anywhere else)
by GyRo567
Tue Jul 27, 2010 4:04 am UTC
Forum: School
Topic: What is/was your college GPA?
Replies: 64
Views: 9887

Re: What is/was your college GPA?

I currently have a 3.88/4.00 over exactly 100 credit hours & will soon finish my BS in Pure Mathematics at the University of Texas at Austin. I think it's worth noting that three of the four B's factored into that came during high school while dual enrolled at the community college. But it's pro...
by GyRo567
Mon Jul 19, 2010 4:37 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0768: "1996"
Replies: 190
Views: 52550

Re: "1996" Discussion

I picked up a TI-Nspire on the cheap a few years ago, and the display resolution is much nicer. I never read the manual, so I still haven't figured out how to graph things with it, but it's been most helpful for matrix iteration. And if they had existed back when I first learned integration, I'm sur...
by GyRo567
Fri Jul 16, 2010 3:51 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0767: "Temper"
Replies: 159
Views: 41422

Re: "Temper" Discussion (#767)

I have very good memories of his show. It was like a child's History Channel. (At least the parts of the History Channel that cover real history & how stuff works)
by GyRo567
Wed Jul 14, 2010 4:39 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0766: "Green Flash"
Replies: 82
Views: 23484

Re: "Green Flash" Discussion

BytEfLUSh wrote:Looks like a bottle to me :)

Bottle?! Then hittin' him's self-defense, idn' it?


EDIT: Also, I totally thought Pirates of the Caribbean just made that up about a green flash at sunrise/set. Physics just gets cooler & cooler. :]
by GyRo567
Fri Jul 09, 2010 4:09 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0764: "One Two"
Replies: 348
Views: 68147

Re: " One Two" Discussion

A slam against anthropologists in the mouse-over, eh? But anyway it seems to bring good news. As "real science" is based on philosophy, I'll go ahead and assume that Randall will bow to our superiority. You philosophers think that you are important, therefore you are? But in reality, I ca...
by GyRo567
Mon Jul 05, 2010 3:51 am UTC
Forum: Food
Topic: Should I Go Vegan Again?
Replies: 48
Views: 6994

Re: Should I Go Vegan Again?

I'm a vegetarian (a damn healthy one---my doctor went out of his way to compliment me on my blood work) living in the very vegan-friendly city of Austin, and I think it's silly for a person to be vegan. The level of dietary supplement required when you're not consuming eggs or dairy makes it conside...
by GyRo567
Sun Jun 27, 2010 2:47 pm UTC
Forum: Mathematics
Topic: Hating on the statisticians
Replies: 72
Views: 9136

Re: Hating on the statisticians

edahl wrote:I might print this out and hang it on my wall.

I've already linked several of my philosopher friends to it, and I'm glad to see nash has sigged it. Now I can enjoy it all over the fora!

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