Text Definition and 558 Threads

Can anybody tell me the software name which changes a pdf file(text mode) which has been scanned and kept in pdf format actually i want to modify the data in that image ie one textbook has been scanned and that is put in pdf format I changed it into word with the converters(pdf to...

I prematurely sold my general chemistry textbook, now I need a new one. I'm especially interested in acid base chemistry and something that will help me understand how electrodes work. Can anyone recommend a readable general chem textbook? My last book was "General Chemistry: The Essential...

I am doing a reading next semester and am trying to find a good text to work off of. I am wondering if anyone else has had a semester of Galois/field theory and what text you would suggest.

Why did textbooks (when I was in high school 5 1/2 years ago) always associate photons with the visible light part of the EM spectrum. Wouldn't the radio, x-ray, gamma, etc. areas of the spectrum exist as photons too? What about the transverse waves; would it not form a helix shape instead of...

Hi, I was reading a general mathematics/ number theory (at least college level) book (NOT a textbook) at Barnes & Noble about a year ago. I can't remember the title but maybe someone on here does... In this book there was an example of a cat in pursuit of a mouse problem using complex...

Okay, second question - does anyone know of a good text that covers the basics of manipulating tensors without assuming a very extensive math background? I am reasonably good at linear algebra and taking a differential geometry class, but that's about the extent of my math background. I am in a...

I am either making the same mistake repeatedly, or I can't factor! I did this \int\ln(2x-3)dx first by parts and then using the formula \int\ln u du=u\ln u-u+C By parts I got: u=\ln(2x-3) dv=dx so =x\ln(2x-3)-\int\frac{2x}{2x-3}dx and by long division: =x\ln(2x-3)\int...

Homework Statement http://books.google.com/books?id=XmsbvP1uUeIC&pg=PP1&dq=zwiebach&ei=E4shR6ePNqCOpgLcjd2GCQ&sig=Eqnkxjj7B9gc4-nig1fgUkk7AqQ#PPA207,M1 As you can see on page 207, Zwiebach obtained 12.6 by simply demanding that it be true. He does this also in chapter 11 with equations such as...

hello all, i'm an EE student,and I've recently started studying quantum mechanics. most textbooks start with schrodinger's equation directly but a few others (like say Liboff) start with the concept of hamiltonian from hamiltonian mechanics. is a knowledge of the same i.e...

Could someone verify these integrals (no text:() I got these integrals wrong on a quiz I just took. Looking back, I am not quite sure what I was thinking:/ But I have reworked them and would like know if I have the integrals set up properly; I don't need to evaluate them...just set them up...

i am faced with some homework in Resolve/C++ and encountered several problems ensures t1 = #t1 * #t2 -what do the pound signs before the variables mean? -what does it mean when one text "*" another text? hope someone can help. can't really find much resolve/C++ help online. thanks!

Homework Statement http://books.google.com/books?id=XmsbvP1uUeIC&pg=PP1&dq=a+first+course+in+string+theory&ei=3TQHR4nyAqf8pwK3h-GnDQ&sig=Eqnkxjj7B9gc4-nig1fgUkk7AqQ#PPA172,M1 I am very confused about equation 10.33. This equation is not derived it is just given, correct? What does...

Wondering if your professor using this as main text, how good will it prepare you for Graduate Q.M course. Would you recommend to simultaneously study material from some other text. I wonder because we are finishing chapter 2 and problems do not seem that challenging, just bunch of integral...

Hi, I'm a 12th grade student from India, preparing for the Physics Olympiad. I've only a basic idea of Special Relativity, while the syllabus includes topics such as the relativistic Doppler effect, so I want to study up a bit. What text do you recommend? Please not one of those old texts...

Does anyone have a recommendation on an introductory chaos theory text? I would like a text that is either upper division undergrad, or possibly at the graduate level. Also, are there any "classics" or bibles in the field? Thanks you,

specifically a pure math book? I'm reading this textbook and sometimes it takes me so long to figure out what the theorem or something is actually saying. I can't tell whether parts of it are supposed or are conditions or if they're using some characteristic of another proven part of the...

What do you guys look for before deciding to buy a textbook? Assume that you don't have any recommendations for texts, or that you have recommendations for 2 or more but can afford time and money enough to buy and read thoroughly only 1 of them. Then what do you consider most important before...

My course is using Rudin, however I've heard that it's not the best text for learning measure theory and extremely difficult. What are some good supplements?

What is the best precalculus textbook in your opinion that gives good examples and problems for you to practice on? Organization and the easy level of ability to comprehend would also be nice.

I'm wondering if anyone here can recommend a good book on things like transformations, operators, bases, and vectorspaces. I had trouble with this subject matter when I took linear algebra, not just understaing the material but picturing it as well. Any recommendations appreciated.

Hi, I've acquired a few stat mech texts. 1)Landau & Lif****z: A Course in Theoretical Physics: Statistical Mechanics part 1 and 2 2)Huang 3)Chandler Which of these should I start with to self-study statistical mechanics? I'm eager to read one of the famous Landau texts, but I'm afraid...

What's the best Precal textbook that would prepare me for the Math IIC? I'm looking for one that has lots of examples, can be understood easily, and includes a lot of practice problems for you to practice on. Thanks.

Hi! I am signing up to take my first course in complex analysis this upcoming semester at my university. One of the professors with whom I am interested in taking the class is using Complex Analysis 2nd edition by Bak & Newman and the other one is using Complex Variables & Applications 7th...

Hi! I am signing up to take a second course in linear algebra this upcoming semester at my university. Among the professors with whom I would like to take the class, one is using one book and the rest another. The one is using Linear Algebra & It's Applications 4th edition by Gilbert Strang...

I am looking to buy some more Physics texts to enrich my library. Based on your experience, what do you think is the best Physics text(s) (the one(s) that explains things the clearest)?

has anybody used James Stewart 5th edition calculus text? is it any good

What are the best Text/Review books for: Chemistry Honors, AP Calculus, AP Bio, AP Enviornmental Science?? I'm looking for good textbooks that are easy to comprehend and gives you a lot of practice and allows you to think a lot. Likewise, I would like simplistic review books that go right to...

Here is an example in my book... Determine the coefficient of x^6 in the expansion of (2-3x^2)(1+2x)^8 (2-3x^2)(1+2x)^8 = 2(1+2x)^8 - 3x^2(1+2x)^8 The general term in the expansion of (1+2x)^8 is C(8,k)(2x)^k Therefore, the term containing x^6 in the expansion of (2-3x^2)(1+2x)^8 is...

Schiff QM chapter 3 prob 9 Let u1 (r) and u2 (r) be two eigenfunctions of the same hamiltonian that correspond to the same energy eigenvalue; they may be the same function, or they may be degenerate. Show that...

Homework Statement A textbook shows an example of work. Either my understanding of Work and how to calculate it is wrong, or the text is wrong, I am going nutty here and not sure which is wrong, I think it is the text but, then again, I am biased. The example goes as follows: (between the...

HTML -- posting from a form to a text file Hey all! I have an angelfire website and on one of my pages I have a "comments page". It simply asks for a user's name and any comments he/she may have. These two pieces of information are then submitted to a text file. My problem is that a...

I need to write a function that reads words from a text file and writes the words to an output tex file while removing all duplicate words. void remove_dup(string filename) { vector <string> a; string word; ifstream infile(filename.c_str()); if(infile.fail()) exit(0)...

Hello, I will be a junior next school year, going into the honors level precalculus courses available at my school. Both precalc functions and precalc trig are required to get into ap calc. There is only one honors level precalc teacher who is a very tough grader and is known for having...

Does anyone know of any good texts that cover Discrete Fourier Analysis and the Fast Fourier Transform? *I don't know if this belongs here in the HW help or in General Math section.

Hi Sorry for the ambiguous title. I am looking to write a program that, upon dragging and dropping a text file onto it in Windows, it will do some pre-determined manipulation to the text, like deleting a certain amount in the beginning, replacing spaces with tabs, etc. If you couldn't...

I'm planning on teaching myself linear algebra over the summer and was wondering what text to grab. Thoughts, suggestions, recommendations etc are all appreciated.:redface: :smile:

Which is more strenuous on human eyes? Because i do plenty a lot of both of them. If i learn that one is less strenuous than the other, i wil probably start spending more time doing that instead. Btw, i have an LCD monitor, which I've heard is better than a regular monitor, but it kind of just...

My DE class (for engineers) requires that the text be printed (for free at university!), and not that saving money is bad, but I wan't a book that can give me the same information for cheap. I am thinking about these dover books that come $14-$20. Any suggestions?

A lot of people seem to write textbooks on engineering. But my question is...why bother?. I am willing to bet you $20 bucks that if you go to a section on say, 'thermodynamics' and take 5 books at random written at the same level, you are going to find nearly identical content in all of...

Why aren't people posting their answers to brain teasers in hidden text? It's spoiling the answers to the brain teasers for me. :frown:

I am not sure if this is actually the correct forum but I have asked mathematics text questions before so I figured I could pose a physics text question here. If not please move my post. I picked up my text for Physics 195A, Mechanics entitled Fundamentals of Physics, Volume 1 - 7th Edition by...

"The pages of a medieval prayer text also contain words of ancient Greek engineer Archimedes. It takes high-tech imaging to read between the lines. The sheepskin parchment originally contained a 10th century Greek text, which was erased by a 13th century scribe who replaced it with prayers...

I play this game pretty much every day: It's called Unification Wars. It takes place in the future, where hyperspace has been discovered. You fight other empires for planets, which produce goods per turn, and from that you make money. The good thing is that you never loose money though. Here...

I had en exam today in spanish for beginners. I'll post a small text that I wrote here to check if I made some mistakes. "Tonto Lentíto Tonto Lentíto es un hombre que vive con su padre en un pequeño pueblo que se llama Huacachina. Es un pueblo verdaderamente bonito. Tiene una playa...

Hi all, I want to make a very basic text editor for editing save game files. I already know the locations in the file I need to edit, but I'm not sure how to go about finding them in a bit file(right term?). I'm pretty familiar with general visual basic.net programming and I can get along well...

Hi, I have a text file with 3 columns (latitude, longitude, & station name) and 51 rows. Using fscanf I am able to read the first row of the file but not the whole file. Any ideas of how to read to the end of a text file that contains both numbers and letters? This is what I have...

Hi, I'm in high school (11th grade) in India and I'm looking for a good organic chemistry text. I'm very bad at memorizing reactions (memorizing anything, for that matter) but good at grasping physical concepts and math, like structure and quantum mechanics. I'm looking for a text that will...

Someone recommend a Fluid Mechanics text for an introductory course. And to understand the position I am in at the moment bad professor, TA and text ( Fluid Mechanics by Frank M. White) My library has a few old fluids text, and the ones I flipped through were Fundamentals of Fluids by...

Does anyone here knows how to use this t9 feature in cell phones? Some says it's the easiest way to crank out quick SMS messages. Does it really works?

Looking for good "Topology" text I'm seeking a good text on Topology to suplement my study of geometrical methods of mathematical physics. For those of you who are learned in this field please post your favorite Topology text. Thanks. :smile: Pete