Search found 26 matches

by CPesyna
Thu Jul 22, 2010 8:52 pm UTC
Forum: Mathematics
Topic: The nth root of n.
Replies: 4
Views: 3487

Re: The nth root of n.

Consider this:

[imath]\sqrt [n] {n} = n^{1/n} = e^{ln(n)/n}[/imath]

So basically, it is [imath]e^{f(n)}[/imath] and [imath]\lim_{n \rightarrow \infty} f(n) = 0[/imath] (L'Hôpital's Rule) and [imath]e^0 = 1[/imath].

edit: TeX
by CPesyna
Thu Dec 17, 2009 4:43 pm UTC
Forum: Computer Science
Topic: Books for the Computer Scientist
Replies: 3
Views: 1001

Re: Books for the Computer Scientist

Yeah, GEB is the book you're looking for. The Annotated Turing: A Guided Tour Through Alan Turing's Historic Paper on Computability and the Turing Machine might be of interest as well. I'm more of a sucker for that "old book smell" but there aren't too many of truly old CS books to be foun...
by CPesyna
Sun Dec 06, 2009 5:16 pm UTC
Forum: Computer Science
Topic: How do computers work?
Replies: 33
Views: 5658

Re: How do computers work?

I recommend the following resources: http://www1.idc.ac.il/tecs/ In the course of that textbook, you build everything from the basic logic gates up to a simple application and everything in between (ALU, CPU, assembler, compiler, OS, etc.) It's not nearly as intimidating as it sounds and well suited...
by CPesyna
Wed Dec 02, 2009 10:59 pm UTC
Forum: Computer Science
Topic: Regular languages problem
Replies: 3
Views: 1304

Re: Regular languages problem

Thanks for suggestion, though I'm not seeing exactly how to formalize this. What you're saying is basically something like this: -For suffixes of length n, there are (3^{n-1})2 possible suffixes not ending in 0. Call this set K -There exists some S \subseteq K of legal suffixes for powers of...
by CPesyna
Sun Nov 22, 2009 5:57 pm UTC
Forum: Computer Science
Topic: Regular languages problem
Replies: 3
Views: 1304

Regular languages problem

So, I'm trying to teach myself formal languages to prepare for auditing a computational complexity class next semester. I was working on this problem for a good part of yesterday and eventually got it to a point where the rest of the proof would require algebra or number theory that I don't know. Gi...
by CPesyna
Tue Nov 17, 2009 1:02 am UTC
Forum: XKCD Meetups
Topic: I just moved to Minneapolis
Replies: 6
Views: 2492

Re: I just moved to Minneapolis

Old thread indeed. I stopped looking at this a while back (can you tell?).

I'm back though, and will be actively keeping tabs on this over the next few weeks. If you notice this message, speak up and we can get down to brainstorming.
by CPesyna
Fri Aug 21, 2009 6:38 pm UTC
Forum: Computer Science
Topic: SICP Instructor's Manual
Replies: 3
Views: 2532

Re: SICP Instructor's Manual

That actually sounds like a really great way to get through the book. I don't mind self study, but it certainly is more fun and smoother going when a friend is involved. The idea of a good pub + a good study group is really appealing! That being said, I just recently moved to Minneapolis and haven't...
by CPesyna
Thu Aug 20, 2009 3:27 am UTC
Forum: Computer Science
Topic: SICP Instructor's Manual
Replies: 3
Views: 2532

SICP Instructor's Manual

Does anyone own a copy of the SICP Instructor's Manual? Is it worth getting for self study as a companion to the main book? I have ~1 year's worth of university level CS education (introductory programming [Java, Python], algorithms, discrete math, computational biology, systems programming [C, x86]).
by CPesyna
Wed Aug 19, 2009 7:19 am UTC
Forum: Computer Science
Topic: Future and present, CS advice
Replies: 9
Views: 1897

Re: Future and present, CS advice

Consider going to office hours to talk about assignments, extend classroom discussion, ask for advice about follow-up courses, or just chat. If your teachers know you and know your interests, it will pay off. They will let you know about opportunities that they hear of, write better rec letters for ...
by CPesyna
Tue Aug 18, 2009 2:12 am UTC
Forum: Computer Science
Topic: CLRS 3rd Edition
Replies: 2
Views: 1108

CLRS 3rd Edition

I got my copy of CLRS 3rd edition in the mail today! As a late convert to CS (just graduated with a degree in biology, but spent ~the last year of college studying applied math and CS) I'm quite excited to acquire the new version of this classic. I was under the impression that it wasn't going to be...
by CPesyna
Mon Aug 03, 2009 6:37 am UTC
Forum: XKCD Meetups
Topic: I just moved to Minneapolis
Replies: 6
Views: 2492

Re: I just moved to Minneapolis

In the name of stimulating some responses, I'll suggest Common Roots ( http://www.commonrootscafe.com ), which is near 26th and Lyndale. I saw a lot of people there playing Go, and one guy in a FSF shirt, so it seems to be a reasonable spot for a meetup. They serve standard coffee house fare + beer ...
by CPesyna
Wed Jul 29, 2009 9:03 pm UTC
Forum: XKCD Meetups
Topic: I just moved to Minneapolis
Replies: 6
Views: 2492

I just moved to Minneapolis

My girlfriend and I just arrived in Minneapolis about a month ago (by way of Chicago, by way of Pittsburgh). I'm not due to start work until September, so I've been killing time with MIT OCW. I was wondering if any fellow Minneapolis/St. Paul area people would care to meet up for coffee, drinks, or ...
by CPesyna
Tue May 26, 2009 5:21 am UTC
Forum: Coding
Topic: SICP
Replies: 14
Views: 1644

Re: SICP

Excellent. That book is at the top of my list for reading when I graduate in June. I'm glad to have a course to accompany it.
by CPesyna
Tue May 26, 2009 1:12 am UTC
Forum: Coding
Topic: ctrl-c issues
Replies: 7
Views: 1061

Re: ctrl-c issues

Nope, no luck. Setting it as the default shell for a dummy user still results in the control characters being printed. Good thought though.
by CPesyna
Tue May 26, 2009 12:04 am UTC
Forum: Coding
Topic: ctrl-c issues
Replies: 7
Views: 1061

Re: ctrl-c issues

In both cases I've run it from bash (this isn't quite ready to be my default yet!). The behavior on both systems is the same regardless of whether it is run from the the virtual terminals or using a terminal emulator (generally gnome terminal or xterm).
by CPesyna
Sun May 24, 2009 5:08 pm UTC
Forum: Coding
Topic: ctrl-c issues
Replies: 7
Views: 1061

ctrl-c issues

Hi, I'm writing a shell for a class that I'm auditing. It does what it's supposed to, but on my home computer (linux), pressing ctrl-c prints the ^C character to the command line (the sigint still gets caught, and the shell does what it needs to do). The same thing happens for ctrl-z. When I compile...
by CPesyna
Sat May 23, 2009 6:50 pm UTC
Forum: Coding
Topic: Can someone run some MATLAB code for me?
Replies: 3
Views: 847

Re: Can someone run some MATLAB code for me?

You should download Octave. I will (probably) save you from this sort of panic next time. Rather than walking *all the way* to one of the CS labs, or sshing into one of the machines I can just run the code at home w/o pirating a copy. You'll need GNU Plot as well.
by CPesyna
Sat May 23, 2009 6:43 pm UTC
Forum: Coding
Topic: Good programming music
Replies: 93
Views: 15676

Re: Music while coding

My favorite coding music in no particular order: Metallica - Master of Puppets The Beach Boys - Pet Sounds The Dubliners - anything Bach - anything for solo piano, or lute/guitar The Prodigy - The Fat of The Land My Bloody Valentine - Loveless I find these albums very nice for some reason. Although ...
by CPesyna
Thu Apr 02, 2009 5:52 pm UTC
Forum: Books
Topic: Books that made you cry
Replies: 296
Views: 47274

Re: Books that made you cry

I will second the suggestion of Primo Levi. I read that book (under the title "Survival in Auschwitz") about two years ago. I preferred "Night", but both are excellent. There's a lot of really good prison literature out there: The House of the Dead (Dostoevsky, not Sega) and One ...
by CPesyna
Sat Feb 28, 2009 7:44 am UTC
Forum: General
Topic: Anyone care to explain this:
Replies: 5
Views: 882

Anyone care to explain this:

I'm at a loss as to the connection:

Image

The recommended item is exactly what it looks like -- a book meant to help wean small children from their baby blankets.
by CPesyna
Sat Feb 28, 2009 6:47 am UTC
Forum: Books
Topic: Books that made you cry
Replies: 296
Views: 47274

Re: Books that made you cry

I can't believe that this managed to go on for >200 posts without anyone mentioning Night by Elie Wiesel. The book is incredibly beautiful, and the saddest thing I have ever read. The part that made me cry was the scene in which... Juliek plays the Beethoven concerto as people are dying through the ...
by CPesyna
Sat Feb 28, 2009 6:30 am UTC
Forum: School
Topic: Odd (Yet Meaningful) Essay Topics
Replies: 71
Views: 6594

Re: Odd (Yet Meaningful) Essay Topics

This was the prompt for my admissions essay to the University of Chicago: Have you ever walked through the aisles of a warehouse store like Costco or Sam’s Club and wondered who would buy a jar of mustard a foot and a half tall? We’ve bought it, but it didn’t stop us from wondering about other thing...
by CPesyna
Sat Feb 28, 2009 6:12 am UTC
Forum: Religious Wars
Topic: Why no HP calculator jokes?
Replies: 14
Views: 5038

Re: Why no HP calculator jokes?

The HP50g is absolutely godlike and I take comfort in the complete superiority it represents. It is the pinnacle of engineering, art, Western thought and human kind. The engineers at HP plucked it and its included faux-leather carrying case from the realm of the gods, and in so doing gave physical f...
by CPesyna
Tue Aug 12, 2008 9:40 pm UTC
Forum: School
Topic: Minor in Mathematics
Replies: 9
Views: 1514

Re: Minor in Mathematics

A degree in mathematics, unless we're specifically talking applied math, demonstrates an understanding of the theoretical underpinnings of modern math. That is to say, it's proof based, rigorous courses. Generally a minor in math means a year of real analysis, a year of abstract algebra, and maybe a...
by CPesyna
Mon Aug 11, 2008 8:31 pm UTC
Forum: School
Topic: Awesome Teacher Quotes
Replies: 1764
Views: 399203

Re: Awesome Teacher Quotes

Paul Sally, the math pirate of the University of Chicago (so named because of the eyepatch and two prosthetic legs he sports), is the subject of many amusing anecdotes. My favorite quote of his would have to be, "One of my students once asked me what the p-adic norm measures. I told him it meas...
by CPesyna
Mon Feb 25, 2008 1:57 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0388: "Fuck Grapefruit"
Replies: 412
Views: 97747

Re: "Fuck Grapefruit" Discussion

I can't completely agree with the placement of the fruit, but the failure to place your mom well in the upper right hand corner is a much more troubling issue to me.

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