## Search found 277 matches

Thu Aug 20, 2009 6:33 am UTC
Forum: Mathematics
Topic: HALP - ODEs question
Replies: 4
Views: 780

### Re: HALP - ODEs question

$\frac{dx}{dt} = {-9x}$

${dx} = {-9x}{dt}$

$\frac{dx}{x} = {-9}{dt}$

$\int\frac{dx}{x} = \int{-9}{dt}$

Something tells me you've got it from here.
Wed Aug 19, 2009 6:08 pm UTC
Forum: Coding
Topic: You know you're a hardcore programmer when...
Replies: 23
Views: 3491

### Re: You know you're a hardcore programmer when...

I decided I was a hardcore programmer when I caught myself thinking of 255 as an easily remembered number. I have the same thing happen to me. Except it started in 2002 when I discovered the maximum number of kills the scoreboard will display in Battlefield 1942 is 255. At the time I did not unders...
Wed Aug 19, 2009 7:37 am UTC
Forum: School
Topic: What's Your Major, Part Deux: The Poll
Replies: 30
Views: 3369

### Re: What's Your Major, Part Deux: The Poll

Wed Aug 19, 2009 7:26 am UTC
Forum: School
Topic: Class rank?
Replies: 113
Views: 10902

### Re: Class rank?

Calc AB - Differentiation, basic integration (anti-derivative, u-substitution) Calc BC - Differentiation, basic integration, advanced integration techniques (by parts, partial fractions, reduction formulas, trig substitution, etc), Sequences and Series, Vectors Comp Sci A - Beginning Java programmin...
Tue Aug 18, 2009 6:23 am UTC
Forum: Mathematics
Topic: Inverse Functions help!
Replies: 19
Views: 1984

### Re: Inverse Functions help!

Trig and... inverse trig?

sin --> arcsin
cos --> arccos

etc.
Fri Aug 14, 2009 7:25 am UTC
Forum: School
Topic: Nationality's Role in College
Replies: 7
Views: 1320

### Re: Nationality's Role in College

Does the application require you to state your ethnicity? I have no memories if mine did, but unless your name is characteristic, they might not even know.
Thu Aug 13, 2009 5:54 pm UTC
Forum: Coding
Topic: Remote Checkbook
Replies: 2
Views: 621

### Re: Remote Checkbook

Mint.com?

It works wonders for people who have checking accounts with banks that it supports. Everything is automatically loaded and pulled down from the servers. I believe there is an export to CSV option also that you can use if you wanted to interface with your own code.
Mon Aug 10, 2009 6:23 am UTC
Forum: School
Topic: Class rank?
Replies: 113
Views: 10902

### Re: Class rank?

I ended up graduating 28/1361. (And since everybody else is doing it:) AP Tests: Calc BC - 5 US History - 5 English Lit - 5 Psych - 5 PhysicsC Mech - 5 PhysicsC E&M - 5 Statistics - 5 Comp Sci A - 5 Comp Sci AB - 5 MacroEco - 5 US Govt - 5 UT Austin accepted all as credit. I have 46 credit hours...
Sun Aug 09, 2009 5:14 am UTC
Forum: Coding
Topic: Coding: Fleeting Thoughts
Replies: 9968
Views: 1949498

### Re: Coding: Fleeting Thoughts

How would I do an animation in a Java Swing GUI? I don't mean just adding a gif file, I'm thinking more like having a BufferedImage displayed in a JPanel or something, and having the view update whenever I change a pixel on the BufferedImage. Call repaint() ? (Or, it's called something like that. I...
Tue Jul 28, 2009 6:00 am UTC
Forum: Language/Linguistics
Topic: Colloquial SI units
Replies: 33
Views: 5729

### Re: Colloquial SI units

People seem to have little problem with megabytes. I hear tons of people having conversations that go something like: Smith: Oh hey, you got a new iPod. Jones: Yeah, it's pretty cool. Smith: How big? Jones: 120 gigs. "Gigs" is common for storage device capacity for some reason, I myself e...
Mon Jul 27, 2009 6:55 pm UTC
Forum: Mathematics
Replies: 53
Views: 9469

### Re: Post your interesting/challenging/fun integrals

Plug that one into Wolfram Alpha and click "Show steps"

http://www07.wolframalpha.com/input/?i= ... 9%2Fx%29dx

Now there's a complicated and roundabout way of doing it, despite being possibly the easiest for a computer to apply.
Fri Jul 24, 2009 6:53 am UTC
Forum: School
Topic: So, My Senior Year Begins (College Choice)
Replies: 7
Views: 1115

### Re: So, My Senior Year Begins (College Choice)

Oh, I forgot, are you National Merit? That will net you like 4k a semester in additional scholarship money at UT. You might also get a few other ones, similar to what I got, which are just "merit" and gave me no reason why I got them. Not yet, but I have high hopes on that front. My PSAT ...
Thu Jul 23, 2009 10:42 pm UTC
Forum: School
Topic: So, My Senior Year Begins (College Choice)
Replies: 7
Views: 1115

### Re: So, My Senior Year Begins (College Choice)

Oh, I forgot, are you National Merit? That will net you like 4k a semester in additional scholarship money at UT. You might also get a few other ones, similar to what I got, which are just "merit" and gave me no reason why I got them.
Thu Jul 23, 2009 10:39 pm UTC
Forum: Coding
Topic: JAR problems
Replies: 4
Views: 909

### Re: JAR problems

It depends on what you have set as your classpath and your working directory. It is not looking for data.txt in the same directory of the JAR file by default, it is looking in the same directory as a .class file, which is generally a folder or two down inside the JAR file.
Thu Jul 23, 2009 4:51 am UTC
Forum: School
Topic: So, My Senior Year Begins (College Choice)
Replies: 7
Views: 1115

### Re: So, My Senior Year Begins (College Choice)

I'm attending UT Austin, although I am a Business/Accounting major and not a Physics/Engineering major. Many friends of mine, however, are also going to UT (we're all starting this fall) and they have heard very promising things about the department. I remember my AP Physics C teacher (ex-NASA perso...
Wed Jul 22, 2009 7:14 am UTC
Forum: Mathematics
Topic: (ln -1)/i = pi?
Replies: 16
Views: 14882

### Re: (ln -1)/i = pi?

Wed Jul 22, 2009 5:26 am UTC
Forum: The Help Desk
Topic: Good site for hosting large files.
Replies: 6
Views: 650

### Re: Good site for hosting large files.

Tue Jul 14, 2009 10:04 pm UTC
Forum: School
Topic: Stupid classmates
Replies: 106
Views: 16092

### Re: Stupid classmates

One person would ask, without fail on every new assignment or unit, "Why are we learning this?" You know, in an english class, I'd say this can be a fairly valid question. Its not immediately obvious why performing a literary analysis is at all useful (especially in grade 8). Now I suppos...
Tue Jul 14, 2009 5:14 am UTC
Forum: Mathematics
Replies: 53
Views: 9469

### Re: Post your interesting/challenging/fun integrals

jestingrabbit wrote:Noone else have a problem with the first four spoilers not opening?

They don't open for me in Firefox. I thought it was just me.
Mon Jul 13, 2009 6:52 am UTC
Forum: School
Topic: 09 AP Physics
Replies: 16
Views: 2362

### Re: 09 AP Physics

My college had them when I went to orientation a few weeks ago, so they were able to tell me my scores as I was claiming credit for class hours.
Sun Jul 05, 2009 6:04 pm UTC
Forum: Computer Science
Topic: Beating the anti-bot letter-images
Replies: 16
Views: 3051

### Re: Beating the anti-bot letter-images

I'm getting more and more worried that captcha's will soon be unreadable. Captchas of today is way harder to read than captchas 3-4 years ago. There are lots of different systems, but some are really hard even for humans to read. I know. I run a web forum and I always wonder if people are able to r...
Sat Jul 04, 2009 8:44 pm UTC
Forum: Mathematics
Topic: 0/0 Debate
Replies: 13
Views: 2074

### Re: 0/0 Debate

You might like: viewtopic.php?t=4507
Sat Jul 04, 2009 6:26 pm UTC
Forum: Coding
Topic: Online Tutorials for Java?
Replies: 13
Views: 1159

### Re: Online Tutorials for Java?

I would really suggest you go the C/C++ route rather than Java. I mean, sure, Java will teach you Object Oriented programming and graphics libraries, but you will probably not ever use them in game design, unless you are working on small games for Java-app phones or something. But yeah, you have a l...
Sat Jul 04, 2009 5:52 pm UTC
Forum: School
Topic: Usefulness of a Minor
Replies: 4
Views: 1563

### Re: Usefulness of a Minor

I just happened to really like Philosophy and take quite a few classes from it, and end up counting that as a minor. This is what happens to a lot of people. They have taken so many courses in X, because they are interested in it and enjoy it, that they realize one more would get them a minor. So, ...
Sat Jul 04, 2009 5:44 pm UTC
Forum: Coding
Topic: Online Tutorials for Java?
Replies: 13
Views: 1159

### Re: Online Tutorials for Java?

How far along are you in learning about Java? If you're just beginning, I actually found this page useful for learning about the language itself. Above that, familiarize yourself with the different standard import libraries, and know things about Collections, Arrays, String, and the Number wrapper c...
Sat Jul 04, 2009 5:57 am UTC
Forum: School
Topic: University of Texas at Austin
Replies: 7
Views: 1110

### Re: University of Texas at Austin

I am attending there this fall, and have several friends in science-y type fields (I am business/finance). UT has an amazing Physics program with very well known professors. I don't really know specifics, but I do remember my AP Physics C teacher mentioning it to my class last year. Apparently some ...
Sun Jun 28, 2009 8:12 pm UTC
Forum: School
Topic: Class rank?
Replies: 113
Views: 10902

### Re: Class rank?

You guys are trying way too hard. But it's not that hard. When given a multiple choice test, I can't help but put the right answers if I know them. And I usually knew them. I almost never studied, but I always did my homework, was attentive in class, and did all the assigned reading. 28/1364, 4.38 ...
Fri Jun 26, 2009 11:36 pm UTC
Forum: Mathematics
Topic: Anyone know where I can get a cheap TI-84 plus calculator?
Replies: 5
Views: 1003

### Re: Anyone know where I can get a cheap TI-84 plus calculator?

It's like buying a Mac. It's kinda going to be the same price everywhere.
Fri Jun 26, 2009 2:00 am UTC
Forum: School
Topic: MBA vs. Master of Finance
Replies: 14
Views: 1847

### Re: MBA vs. Master of Finance

You sound like the future me. I'm starting college this fall, and that is exactly what I am headed for right now.
Tue Jun 23, 2009 2:09 am UTC
Forum: Coding
Topic: Design your ultimate coding keyboard.
Replies: 44
Views: 6588

### Re: Design your ultimate coding keyboard.

'; DROP DATABASE;-- wrote:And maybe it could be air conditioned to keep my hands cool

Would be the only thing I really need.
Tue Jun 23, 2009 2:06 am UTC
Forum: Coding
Topic: python newb question
Replies: 13
Views: 1955

### Re: python newb question

Use [code] tags so that we can keep track of your indentation. This is rather important in Python.
Wed Jun 17, 2009 6:05 am UTC
Forum: School
Topic: What do other countries teach about The united states?
Replies: 78
Views: 9213

### Re: What do other countries teach about The united states?

It's surprising that they don't teach anything about the Eight Nation-Alliance at all......, where Japan, Russia, UK, France, US, Germany, Italy, and Hungary all wanted a piece of China. I mean, there is no excuse for this to not be in the history of any American or European history, since they are...
Tue Jun 16, 2009 8:24 pm UTC
Forum: Coding
Topic: Changing a const
Replies: 28
Views: 1987

### Re: Changing a const

The second printing only prints up to 2, while the third element in each direction still exists. It's just not being called on to be printed. Nothing is being resized.
Fri Jun 12, 2009 4:37 am UTC
Forum: Coding
Topic: Fractals in Java
Replies: 13
Views: 1571

### Re: Fractals in Java

My AP comp sci teacher recommended that I use something from the swing class. What advantage over AWT would the swing class have? Swing is somewhat of an extension of the AWT. It offers more options, but you might not need all that it offers. AWT can do more basic drawing without everything Java be...
Tue Jun 09, 2009 10:33 pm UTC
Forum: Coding
Topic: Fractals in Java
Replies: 13
Views: 1571

### Re: Fractals in Java

It still overflows the heap. Is there a better class I can use for drawing images? (that also allows me to draw single points because gpdraw doesn't have that) Just work with AWT and make your own frame/canvas, and draw directly on it. The only issue you're going to have is that the axes are in the...
Tue Jun 09, 2009 10:29 pm UTC
Forum: Computer Science
Topic: How do you decompress a video file?
Replies: 13
Views: 5165

### Re: How do you decompress a video file?

Wait so it actually uses more computing power to play it uncompressed. I thought compression was a trade off between computing power and storage space. Compression is a trade off between quality and space, unless your compression is lossless, which means it can only compress certain parts, and only...
Mon Jun 08, 2009 6:24 pm UTC
Forum: Coding
Topic: Help w/ Differentiating in TI-Basic
Replies: 9
Views: 1332

### Re: Help w/ Differentiating in TI-Basic

Of course, I believe the OP wanted it to actually tell him that the derivative of 3x 2 is 6x. This is not difficult, but making it actually work for any function that is not a monomial can get very very complicated very very fast. Not sure what you mean by "is not a monomial" - if you can...
Sun Jun 07, 2009 8:47 pm UTC
Forum: School
Topic: Roommates for College
Replies: 34
Views: 4055

### Re: Roommates for College

I'm going to UT, but I already have a roommate.
Sat Jun 06, 2009 5:05 pm UTC
Forum: Coding
Topic: Constants in C++
Replies: 5
Views: 923

### Re: Constants in C++

I think what it means is that myAge can still change. While you may be treating it as a constant and never changing its value, the compiler can not know that this will happen for sure (unless using some sort of non-default optimization techniques). However, the studentsPerClass constant is actually ...
Tue Jun 02, 2009 9:14 pm UTC
Forum: Science
Topic: Number of possible humans
Replies: 24
Views: 2178

### Re: Number of possible humans

sgt york wrote:Homozygosity does exist, there is not just one copy of each gene floating around out there (fortunately). It's not that the formulae you reference are wrong, it's that they model the wrong thing.

Well yeah, so calling it "4 choose 2" was not correct in the first place.