Text Definition and 558 Threads

Just started reading this online text (arxiv 0608140) and already ran into trouble in the second equation (see quoted below). The energy product of the wave function is negative. (Am I saying this correctly?) Dyson says "NR wave-mechanics tells you to take the equation E=\frac...

i couldn't find anything about the authors or the name of this text, has anybody seen this book before? If you did, could you please tell me it's name? PS: Sorry, this is the best i could do, only 4 pages...from chapter 1. THEY don't even have a table of contents...THANKS

How is it possible that maths textbooks by reputable authors in their 2nd, 3rd, or even later publication can still be littered with errors in the answers...Isn't there supposed to be some form of proofing mechanism such that the *overwhelming* majority of errors get weeded out? :confused: (I...

My girlfriend has been receiving crazy text messages on her new phone, ever since she got it. Finally, the crazy person began calling her, realized she had the wrong number, and we think the messages are therefore stopped. However, we've been having a good time trying to decipher these insane...

I've learned the basic methods of ODEs but I'm looking for a more advanced book, covering things like limit cycles, existence and uniqeness thoerems, phase portraits, and so on. Does anyone know of a good book for such topics.

I want a type of effect in my text so that the text seems to be coming out of the background. So that the text seems embedded into the background but still having depth and protruding out? Unfortunately I don't have an image to show, I have only seen it a few times. I hope you understand what I...

Hi, the problem I have is one dealing with static friction. The problem states: The coefficient of static friction between hard rubber and normal street pavement is about 0.8. On how steep a hill (maximum angle) can you leave a parked car? I know that the downward force is "g" and that...

I tried to read Classical Electrodynamics - 3rd Ed by J.D. Jackson cover to cover with the aim of working through all the homework problems. Problem: The math is too prohibitive. I need to drop that book for now and pick up a book on mathematical physics and go through that first. I'd like some...

I am half way done with Physics 2. I don't feel that I learned enough and I want to review and relearn physics 1 and 2 during the summer. What is the best physics textbook, which is the most popular for freshman physics. Also, and most importantly, which is the best for self-learners? Thanks

I'm trying to save an Excel spreadsheet as a (tab-delimited) text file for input into another database. For some reason, fields containing a comma are being displayed in the text file within quotes, which I don't want. For example: John Doe appears as: John Doe Doe, John appears as: "Doe...

I'm looking for a good survey text on aerospace engineering. I found this on Amazon.com https://www.amazon.com/gp/product/0071362290/?tag=pfamazon01-20 but there are no reviews posted. If anyone could recommend this text, or perhaps something with similar information I'd be appreciative...

Pharyngula has some exerpts from Jones Dover school board decision that impressed me as well and truly written: http://pharyngula.org/index/weblog/comments/the_bottom_line_in_dover/ http://pharyngula.org/index/weblog/comments/unconstitutional_to_teach_id/ in case these links are slow (lot...

I (or more accurately, my beau) want to start up a chat room. - I am open about whether it is voice or text-only. In fact, I am open about whether it uses computers at all. (If someone could tell me how I could get a conference phone call going at a reasonable rate.) - it's for a select...

Just wondering if anyone out there knows of a program that I can add about a page of text to my ti-86 calculator. Basically I don't have time in the morning to read the news & I'd like to copy articles then read them on my calculator at work :-p. There is the program notefolio but it's only...

Hello, I just made a program that puts numbers into a two dimensional array, and then saves them in a text file that looks something like this: 4 4 4 4 4 4 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 4 4 4 4 4 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 7 4 4 4 4 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 7 7 4 4 4 5 5 5 5 5...

The entire text is taken from the following website: http://math.ucr.edu/home/baez/physics/Relativity/SR/mass.html Has there ever been proven in practice that mass of an physical object/particle does indeed increase with its velocity? Here is the text copied from the website(written above)...

Main Question: How many people are taking a course using a zumdahl text? I ask this because i would like to add a few people as buddies if they don't mind, and will help them with the class as i go through it, to help keep my memory fresh.

What is a good textbook on real analysis that has either a solution manual or solutions in the back. I have Rudin's Principles of Matematical Analysis but it has no solutions. The class I am in now is using A book called Elementary analysis the theory of calculus by Ken Ross, but it is a joke...

Any recommendations?, I'm also hoping for a book that i can find online...

In my book QM book, Gasiorowicz says that \int_{-\infty}^{\infty} e^{i(p-p')x/\hbar}dx = 2\pi \hbar \delta(p-p') Where does that come from? I mean, set i(p-p')/h = K. Then the solution is \frac{\hbar e^{i(p-p')x/\hbar}}{i(p-p')} and evaluate at infinity, it doesn't exists as the...

MS Word and keeping pasted text to original default format... Is there a way I can just highlight text to turn into the original default font or is there a way I can stop MS Word from allowing the format of different texts to be applied to the original default?

I'm taking a class in abstract algebra this Fall. There isn't a text required, but they recommend Dummit and Foot for the prelim exam. Does anyone know if there's a significant difference in the 2nd and 3rd editions? Other than about $50. There are pdf files with errata for both...

Tom Irvine at Vibrationdata.com has linked to a book "Structural Mechanics for Undergraduates." The entire book is free to download here: http://www.vibrationdata.com/strength.htm As a side note: If you are at all interested in learining about vibration theory, analysis and related topics...

What is a damping. Text books say damping is proportional to velocity. Why not damping is proportional force? or why not damping proportional to some other parameter. What does damping actually do ? Is there any practical application ?

I'm taking an infinite series/sequence course and the text they give us is out of a textbook written by R.C Reilly. The problem is, there is no answers in the back of the booklet for me to check my answers. I've tried googling for the name of the textbook but no such luck. I understand that...

I use Opera. Sometimes, when looking at the "New posts" page, I get a little text popup (in the same style as the ALT text for images) that contains the first sentence or two of the posts. But, I can't figure out what I'm supposed to roll over to get the text. From where does it come?

Over this semester I studied quite a few physiology and anatomy books ranging from the classics of Gray's anatomy, Last's anat, Guyton & Hall's medical physiology and also Lange's histology and Lange's physiology. A word of advice to any premed student buying or reading from these books...

Hello I am doing this problem in my textbook and I am not sure what is happing in this one step. 2y = 360 \sqrt{\pi} - \sqrt{\pi}y Trying to solve for y and this is what they show as the next step (2 + \sqrt{\pi})y = 360 \sqrt{\pi} Where does this (2 + \sqrt{\pi}) come from...

Hi Ho! ^^ I'm still learning programming in C (I'm still on my first year in Information Technology faculty) Well, I'm interested in making something from scratch. Hehehe... right now I'm curious about efficient text handling technique used in a text editor. When creating a simple text...

I'm a physics major (undergrad) who wants to learn real and complex analysis, but don't have the time to do the courses in my programme. Can anyone recommend a good textbook for learning the subjects on your own?

Anyone know any decent classical mechanics and/or thermo/statistical mechanics books that have many problems along with solutions? I hate that the books I do have, which have no solutions particlely (just talking about the stat of solutions and not the hateing of text here). It's not...

Hello all. Seems to be an excellent forum with many experts. I'm interested in quantum field theory. There's a question in my textbook (introduction to QM and QFT) and I'm not sure if I found the right solution and its interpretation. Question 1: How many energy is needed to create a...

I hope a few of you are avid perl programmers. There seems to be a surprising paucity of decent perl-centric boards out there, so I thought I'd try this one since so many smart people come here :-) I myself am new to perl but have plenty of experience in C++/Objective-C and other languages...

I want to get a full text of this article, but it does not work. Does anyone know how i can get it? It was asking about subscribing which i don't know what it is...:cry: http://www.blackwell-synergy.com/links/doi/10.1111/j.1365-2141.2004.04821.x/abs/ Thanks for any inputs.

I need a recommendation on a good second level college physics textbook. Pretty much any price range is fine. Also, i would like a recommendation for a good first semester Calculus book. Thanks to all who help out!

How do I make Windows XP, and especially Word stop trying to guess what I'm trying to highlight and just let me do it myself. I waste minutes of my time by having it try to save me 1 second. For example, if I type Hello There and I want to highlight lo Th it won't let me do it...

Has anyone used Howard Anton's "Calculus" 5th edition text? if so, is it good, or would you recommend another. thanks.

TextPad® 4.7.3 is a powerful, general purpose editor for plain text files. http://www.textpad.com/ A 'free' trial copy is available, but it is inexpensive, and quite powerful, and it is available in several languages. I have used a paid copy for over 7 years. It handles text files...

Hi, I am not seeking a "complete" treatment of distribution functions (like Gelfand or Schwartz). However, I would like some discussion in regards to multiplying delta functions together---especially in QM. From the little I have discovered, distributions do not form an algebra, and thus...

I have been looking over some of the posts and I was wondering how you were able to get textbook written problems on the forum that were pictures. As apposed to (2^3/5) as an example.

How do I improve text scrolling of my computer? It used to work fine, but I reinstalled windows and now when I scroll the text moves along in a staggered fasion, not smooth :(

I was reading through my linear algebra book and came across a picture of a mass on a spring! We are not on that chapter but i decided to look at it anyways since we just finished oscillations in physics! :wink: . But it seems to me that the author of the linear alebgra book might not...

Hello, I was hoping if somebody could point me to a starters text on differential geometry. I have done some calculas ~4 years ago - I can refresh stuff as I need to. My physics is at high school level, but I do read up on stuff every once a while My aim in learning diff geom is to be...

Hi Those of you who have read Bohr's Theory in Chemistry may have encountered the relation, \frac{1}{\lambda} = RhcZ^{2}(\frac{1}{n_{1}^{2}}-\frac{1}{n_{2}^{2}}) for the wavelength of radiation emitted when an electron goes from a higher energy level n_{2} to a lower energy level...

This is my first post, by the way. Hello everyone. I just received R. Shankar's text on QM a few days ago. I am thorougly impressed with the general layout of the book. I've heard introducing Dirac notation first is an excellent idea. The first ~ 80 pages of the book are of a introductory...

how do you convert a text file into a LaTeX file? thank you soooo much...

This is my first java gui program. When I try to get the text from the text fields i get a null pointer exception. I looked at the text fields with the debugger and found that the text fields were null even though i had typed stuff into them. could someone help me out here? btw I know my...

For those of you with the Alberts text... Page 999, top paragraph: "Once the pre-RC has been assembled in G1, the replication origin is ready to fire . The activation of S-Cdk in late G1 pulls the trigger and initiates DNA replcation. The initiation of replication also requires the...

I'm a high school senior who's never taken physics but I plan on doing so in college. I'd like to get a good start...I'm very good w/ the sciences..i'm in the IB-program so I really would like to get a good headstart..plan on studying over the summer. Just two days ago I bought PHYSICS...

Say you have a website with mainly text, but that you want people not to be able to just "copy-paste" from it. Is there a way to make the browser: 1. Download the content as text (so that the speed stays ok), 2. Display it normally, but 3. Block any user from selecting a portion of it (so...