## Search found 23 matches

Wed Aug 15, 2012 1:22 pm UTC
Forum: Mathematics
Topic: A frame of a vector space that isn't a tight frame?
Replies: 2
Views: 1577

### Re: A frame of a vector space that isn't a tight frame?

ahh, got it. I had just taken f(x) to be the signal in question, not arbitrary. Thanks!
Wed Aug 15, 2012 2:31 am UTC
Forum: Mathematics
Topic: A frame of a vector space that isn't a tight frame?
Replies: 2
Views: 1577

### A frame of a vector space that isn't a tight frame?

EDIT: changed the title to fix some ambiguity I am in the first few months of undergrad research and have been making my way for the past couple of weeks through wavelets and overcomplete dictionary learning Looking at the frame conditon: A{ \left\| f(x) \right\| }^{ 2 } \le\quad \sum _{ k }...
Fri Jun 29, 2012 4:06 am UTC
Forum: Mathematics
Topic: Matrices with incoherent columns
Replies: 2
Views: 2376

### Re: Matrices with incoherent columns

I'm not doing compressed sensing specifically. I only started a couple of weeks ago, and my advisor's last students sort of wrapped up the project they had been working on, so I'm kind of looking for new stuff atm. However, her students had been working a lot with using Gaussian Mixture Models for v...
Thu Jun 28, 2012 11:46 pm UTC
Forum: Mathematics
Topic: Does this problem have an exact solution?
Replies: 5
Views: 2301

### Re: Does this problem have an exact solution?

Assuming your answer is correct, there are actually an infinite number of solutions unless you specify the length of one or the other radius, since you have one equation, but two variables
Thu Jun 28, 2012 10:12 pm UTC
Forum: Mathematics
Topic: Matrices with incoherent columns
Replies: 2
Views: 2376

### Matrices with incoherent columns

I just started research in Image Processing, so I'm slowly going through the pile of papers that my advisor wants me to read. One is basically an overview of techniques to find sparse solutions to underdetermined systems of linear equations. The paper mentions that "for matrices A with incohere...
Sat May 12, 2012 4:28 am UTC
Forum: Mathematics
Topic: Differential equations question
Replies: 4
Views: 1457

### Re: Differential equations question

At the moment I really want to learn how to apply Calculus to analysis of video games -- so I can analyze any video games where many functions are unknown, but changes are visible, so I thought differential equations would help me do so. Well, calculus doesn't strictly apply to anything in a comput...
Wed Feb 22, 2012 6:22 am UTC
Forum: Coding
Topic: The "IT DOESN'T WORK!" thread
Replies: 1958
Views: 545607

### Re: The "IT DOESN'T WORK!" thread

Java references have pointer semantics. A = B means "A now refers to B" Yeah I thought it might not work because of that very reason, I was just trying to confirm that. In fact, it was some loose junk hanging around from my old (erased... oops!) BST file. I now get exactly what I expected...
Wed Feb 22, 2012 5:17 am UTC
Forum: Coding
Topic: The "IT DOESN'T WORK!" thread
Replies: 1958
Views: 545607

### Re: The "IT DOESN'T WORK!" thread

So I accidentally saved a blank program over my Java Binary Search Tree class for my Data Structures class, so I'm rewriting it. I'm getting a weird runtime error when I check my Insert method: class BST<T extends Comparable<? super T>>{ BSTNode<T> root; BST() { root = null; } //...// private void I...
Wed Feb 22, 2012 5:04 am UTC
Forum: Coding
Topic: My code has an English accent!
Replies: 15
Views: 5347

### Re: My code has an English accent!

I am incredibly confused as to how this relates to an English accent & not just hard-to-read code.

geez man. It was just a joke, I actually code in Times New Roman most of the time.
Sat Feb 18, 2012 3:32 am UTC
Forum: Coding
Topic: My code has an English accent!
Replies: 15
Views: 5347

### My code has an English accent!

I was playing around with the font in my IDE and couldn't resist doing this to my code:

"I should say, that comparison does return true indeed! Come, we shall to the drawing room for some crumpets and Cool hWhip!"
Tue Jan 17, 2012 9:10 pm UTC
Forum: Coding
Topic: Confused why my code throws 'no return statement'
Replies: 7
Views: 2805

### Re: Confused why my code throws 'no return statement'

Two things: First, the '11' only comes from the explicit assignment, which requested "sets of natural numbers from 0 to 10, using an array of booleans". That's what the client wanted!!! :D Theres no reason otherwise why it couldn't be opened up to an ArrayList<Double> that could take basic...
Mon Jan 16, 2012 11:43 pm UTC
Forum: Coding
Topic: Confused why my code throws 'no return statement'
Replies: 7
Views: 2805

### Re: Confused why my code throws 'no return statement'

phlip,

Awesome! Thanks for the tip, especially the aside on style!
Mon Jan 16, 2012 10:44 pm UTC
Forum: Coding
Topic: Confused why my code throws 'no return statement'
Replies: 7
Views: 2805

### Confused why my code throws 'no return statement'

So, for my Data Structures class, we have to do a little Set Theory. The implementation asked for by the professor asks us to replace the toString() in the Object class with a toString that outputs the elements of the set (constrained to Integers from 0 to 10) as numbers separated by spaces, or &quo...
Fri Dec 09, 2011 6:27 pm UTC
Replies: 175
Views: 63862

*puts on Joker make-up, prepares for overused joke*
Why...so...cynical?
Fri Dec 09, 2011 6:03 pm UTC
Forum: School
Topic: Tough Grad School Application Situation
Replies: 10
Views: 3436

### Re: Tough Grad School Application Situation

Math: Calc 2+3, Linear Algebra, Diff EQ, and then Discrete and Numerical Analysis next semester. Physics: General Physics 1+2, Acoustics, E+M, Optics, Electrodynamics next semester. CS: Java, data structures next semester. EE: Circuits, Systems + Signals. total GPA in these courses is 3.68. All of t...
Tue Dec 06, 2011 5:07 am UTC
Forum: School
Topic: Tough Grad School Application Situation
Replies: 10
Views: 3436

### Re: Tough Grad School Application Situation

Did any of the technical classes you took have a project component? That's a good way to demonstrate aptitude and interest, and a professor might remember you. Actually no. There is no formal engineering school at my college, so aside from a couple EE courses I took this past summer at JHU, my cour...
Mon Dec 05, 2011 4:32 pm UTC
Forum: School
Topic: Tough Grad School Application Situation
Replies: 10
Views: 3436

### Re: Tough Grad School Application Situation

That was my initial thought, but professors at a few of the different universities I am applying to have said that the best move is to apply for a Master's degree program or MS/PhD program and make up whatever holes I have left while simultaneously advancing what knowledge I already have. Furthermor...
Mon Dec 05, 2011 4:48 am UTC
Forum: School
Topic: Tough Grad School Application Situation
Replies: 10
Views: 3436

### Re: Tough Grad School Application Situation

Thanks man. Maybe it sounds stupid but it's nice to hear that I'm going about this the right way.
PS, after seeing your signature I am absolutely going to go figure out the cost of a lego chair vs a similar sized ikea one. this kid just got completely nerd sniped!
Mon Dec 05, 2011 4:16 am UTC
Forum: School
Replies: 157
Views: 35726

I actually had a fantastic experience with the gifted program at my middle school. I fondly remember my teacher, Mrs Graham. What we did there was that it was basically just like an honors class: she taught us our math and our English, and we generally went during lunch to do other independent proje...
Mon Dec 05, 2011 4:09 am UTC
Forum: School
Topic: Tough Grad School Application Situation
Replies: 10
Views: 3436

### Re: Tough Grad School Application Situation

The worst is that this isn't some sort of pipe dream. I spent the last two summers taking classes at a top-notch university instead of just relaxing. After seeing my results, I am convinced that I would make a top-notch student at a top-notch university. I guess I know that I may well not get any sa...
Mon Dec 05, 2011 2:19 am UTC
Forum: School
Topic: Tough Grad School Application Situation
Replies: 10
Views: 3436

### Tough Grad School Application Situation

I am currently in the process of applying to grad schools for Electrical Engineering and have a severe problem that has nothing to do with my academics, and knowing that xkcd attracts many academics in the sciences, I would like to know what advice anybody has on the subject (particularly those who ...
Sat Oct 15, 2011 12:29 am UTC
Forum: Science
Topic: and now for something completly different.. OPTICS PROBLEM!!
Replies: 2
Views: 1177

### Re: and now for something completly different.. OPTICS PROBL

Actually after I posted i walked away for a sec and tried one more time, and lo and behold I got it!! Turns out I was doing it right but was a victim of bad handwriting... Thanks though for the quick reply!
Incidentally, the answer ended up being the square root of the Golden Ratio. conspiracy!!!
Fri Oct 14, 2011 11:48 pm UTC
Forum: Science
Topic: and now for something completly different.. OPTICS PROBLEM!!
Replies: 2
Views: 1177

### and now for something completly different.. OPTICS PROBLEM!!

Alright folks here goes:

For what refractive index are the critical angle and (external) Brewster angle equal when the first medium is air?

Cheers