Text Definition and 558 Threads

I'm reading from an introductory text on quantum physics, and came across this sentence: It's the second sentence that I don't understand: how can the energy in the EM field be responsible for the ability of a hollow cavity to absorb heat?

Using Excel 2003, I'd like to display text data in the Data Items area of a pivot table. Currently, I see the number 1 in the field. I've changed the format to "Text", which has no effect on the data that's displayed. Is it possible to display text data in the Data Item area of a pivot table...

I'm looking for a text-based quiz program that I can put in questions and take quizzes. I need it to help study a whole slew of definitions for chemistry as well as vocabulary words for a foreign language. When I was in the military I had this program that had a simple XML file for questions...

I am building some small optical cells that will be about the size of a flashlight. They will contain liquids at up to 6000 psi and and have threaded portholes bored in them for inserting sapphire optical windows. I have built these in the past and I will contract one of our Mechanical...

I am having some trouble understanding the paragraph after eq (3.93) in Peskin Schroeder (Page 55). The chapter is on the Dirac Field. These are the parts where I am not following: 1. If the ground state |0> is to be invariant under translations, we must have |0> = e^{i \textbf{P.x}} |0>...

Develop an application that reads city, state and population entered from the user and writes this information to a file. The application should continuously prompt for this population information until terminated by the user. Example file: Jamestown FL 50000 Domville CO 10000 Jennyboro FL...

Homework Statement Determine the value of k for which the graphs of p(x) = x + 2 x + 3 and q(x) = k + 5 x - 7 x enclose an area of exactly 36. Be sure to use text regions to annotate your work (i.e. explain your reasoning). Homework Equations The Attempt at a Solution So...

A question on linear algebra text! Hello everybody! I'm new to this forum. Actually, this is my first post in here. I'm currently a sophomore student in college. My major is in mechanical engineering. Right now, I'm taking the course introductory linear algebra, which is the first course in...

Can anyone recommend an elementary but rigorous text on differential equations that takes care to distinguish between a function, f: X \rightarrow Y, and its value f(x) \in Y, as Spivak does in his Calculus. I find I'm getting rather confused by the traditional y=y(x) type dual-meaning notation.

I need a good and advanced PDF to text converter, that can also Scanned JPEG to Text Converter . I found this http://www.ocrcοnvert.com , but I need to know if there are more ??

Okay so let's say (hypothetically of course) I am on my third attempt at the final Calc course in the series at my college. I feel like my foundation of even simple mathematics and arithmetic is unstable to say the least for me. I enjoy the concepts of math and what it could be used for but...

From second law of thermodynamics one can obtain an expression for change in entropy of a system developed by Classius. All thermodynamic systems can be looked at as a reservoir. ds=\ointDQ/T---(1) Ds- Change in entropy in the system brought about by reversible heat transfer between system...

A computer prints two papers, on the first paper is written, "ASDDSF DFGDF ERSDKUF DFD RRVFDSDA" on the second paper is written, "HOW ARE YOU HSHJFD SDF JGYJHNF LKJSFL" One might say the first paper has some random letters which are generated by a computer randomly. But he might say the...

I'm looking for a classical mechanics book that is heavily mathematical based, I've looked around a little however I'm lazy and don't want to buy a dud book. any recommendations would be great, thanks. (also i know there's 100000000000threads on text recom's however can't seem to find much ppl...

I am trying to learn gauge issues in cosmology from Weinberg's "Cosmology". However, I am completely stumped at how he gets 5.3.4 from 5.3.3. I was doing great until that point and now I'm going crazy. Any help would be highly appreciated!

Anyone know where I can find some?

Do u think text speak is ok in forums or r u averse to it.

Homework Statement Volumes of 1, 5, 10 and 15mL .0024M K2CrO4 are added to separate flasks and then filled with enough .25M NaNO3 to make 100mL of solution each. I'm asked to calculate the [CrO4^2-] per flask. I assume that all of the K2CrO4 will dissociate and, since there is only 1mol...

how to see the output of a file operation? eg void main() { int a; cin>>a; ofstream o("a.txt"); o<<a; o.close(); } does the text file "a" come into existence? can we open it?

i'm using basic graphics on MATLAB where i use text(x,y,'text as string') to display text on a plot. is there a way to REMOVE this text? I tried overwriting it with ' ' and making the color white, font size 0, but none of these will remove the text.

Hi guys, I am wondering if anyone can recommend a good calculus-diff.eq text that does a good job at explaining concepts on an intuitive level. I have already covered the material, but many times I just learned to solve problems algorithmically, rather than understanding the theory. In turn...

Hello gas turbine peeps, I'm going to be starting a new position doing Aero CFD for a power generation gas turbine company. While I have a good amount of theoretical and academic knowledge of CFD in general, my practical application experience is limited. I was hoping to do a little light...

Hey guys I'm not sure if this is the appropriate forum (hopefully it is), but this fall I'm taking a course titled Logic Design of Digital Systems and I recently acquired the textbook so I could get a headstart, but the problem is I can't make heads or tails of this text. I checked the amazon...

Hi, while I see this question has been beaten to death I don't feel I know the answer for myself. I've been looking at picking up a calculus text of Apostol or Spivak while I go back this fall. I'll be taking the second half of first year calculus starting september (integration, diff...

I just downloaded a program called iCall that allows me to make phone calls from my computer. My only problem is is that I don't have a working microphone. I was wondering if there was any way to use a text to speech device to allow me to call someone, hear what they say through my speakers and...

basic statistics question: i have two variables, M1 and M2. i want to calculate how similar these two variables are using the odds ratio. M1 and M2 are lists of things, with some elements present in both lists. i also have a background list containing the things in M1 and M2, plus more...

There is a text document with data separated by the "," sign. such as 58.5698, 75.2495, 57.1548... I want to createa vector called Y in MATLAB using these datas. there are 50 values. i opened the file with the fopen command. And then tried with the fgetl command. but when I use the...

i am wondering what is the best way to justify a block of text. for example, right now i have a code that prints: 1 2 3 4 5 6 7 8 9 10 11 and so on, but i want it to print 1 2 3 4 5 6 7 10 11 12 13 14 15 16 in other words, there is a new line at the...

Hi, I wish to enter AP calculus first thing in my final High school year, and so I am Essentially skipping some precalculus content, and wish to learn/review Pre-calculus by myself. I need a book that is not application heavy, and does not rely on graphing calculators, and is overall more...

Okay, I just began a bit of a python phase, and I want some help. You'll probably be hearing from me quite a bit in the next few weeks. Anyway, my question is about I/O functions. Specifically when it comes to opening and closing text documents. I have successfully opened a file (which I...

Since it's summer and I'm only taking a chem class I picked up my physics text and started browsing. I found the following problem and I was able to get an answer close to what the book has in the back..I can't really explain why that is so. it's my opinion on the matter that even though I found...

I just finished taking a year-long undergraduate analysis sequence. The texts I used for this sequence were the first eight chapters of Rudin's PMA (everything before multivariable calculus) and Spivak's Calculus on Manifolds, as well as a little bit of my professor's lecture notes on...

Homework Statement A car moving at constant acceleration covers the distance between two points 58m apart in 6.2 seconds. its speed as it passes the second point is 54 km/hr. what is the speed at the first point? at what prior distance from the first point was the car at rest?Homework Equations...

So, I started with "Physics for Dummies", but it quickly became confusing. They use speed and velocity interchangeably... calling acceleration the rate at which speed changes, talking about negative speed, telling me that vector a + vector b = vector c. After internet research, I'm pretty sure...

What are some ideal texts for self-teaching quantum at the undergrad level? The only text I'm vaguely familiar with is the Griffiths Quantum text, but I'm not sure if there exist better ones.

Please don't start by saying there is no such thing as th best text or the most rigiorus text about anthing. I simply mean like we know Apostol's text fo calculus friedberg's or Hoffman's text on linear agebra Rudin's analysis text and ... what's the one about relativity? As far as I've googled...

i am trying to locate the end of a text file and delete any extra white spaces following it, but i am having trouble trying to do this. is there an easy way to do this? right now i am reading the text in character by character and outputting the text to another outstream file. i can't seem to...

My shelves of once cherished and indispensable academic books, now seem more a box full of slide rules, or like my dusty old stack of 45's, than they do the deep well of knowledge that they represented as I slowly stocked them. It seems to finally be true: The long predicted death of print is...

Hey, I'm in first year engineering (mechanical), but we study EE as well. I've got exams coming up in about 2 weeks, and I need a good intro text to help me study since the lecture notes I have aren't really adequete. The kind of stuff I'm covering include circuit theory (thevenin problems...

Hi I am in my freshmen year and I am taking a course on Modern Physics. We use the book "Concept of Modern Physics" by Arthur Beiser. I have huge problem understanding the wave and particle dual properties of matter. And now we are about to start Quantum Mechanics. it seems further...

hi, I'm ran into a problem while creating a Matlab GUI and I can't seem to find out why. I'm trying to get multiple lines in one static text. I set the 'max' property on 12 and then wrote the following code to test: A='a';B='b';C='c';D='d';E='e';F='f';G='g';H='h';I='i';J='j';K='k';L='l'...

I'm just looking for an affordable quantum physics textbook, I am not quite a beginner at this, maybe intermediate if you call it.

Matlab GUI: putting several "edit text" inputs in one matrix Hi, I'm making a Matlab GUI that will ultimately send data to a robot. I have about 60 numbers being 6 polynomials of 10 terms. My "edit text"-boxes are currently named motG_RN_0 where the R can also be an S or a T and the N can also...

Which are the best graduate level textbooks for the following subject areas? Applied Nuclear Physics Electricity and Magnetism Classical Mechanics Quantum Mechanics Unified Field Theory Statistics (both applied and theoretical) Analysis (real and/or complex) Modern Algebra and Linear...

I was reading my textbook to study for a test in my C++ class and I cam across this question and the answer is not in the book. I'm afraid I might need to know how to do something like this for my test and there isn't an example of one like it in my book. I'm not sure how to do it so I don't...

"we want to calculate the heat enrgy of a gas molecule n - is the number of molecules per volume v_th - is the average speed of gas molecule L - is the distance which travels one molecule in a certain time we have six directions for which they travel +-x +-y +-z so in each time n/6 of...

Does anyone have any recommendations of a good book(s) for a first undergraduate-level course in Statistical Mechanics?

Hello All I have recently recovered from a 4 year hospitalization which pretty much ended my career as a computer scientist. Much of the time I was barley lucid and thus time and medication have taken their toll on my memory. Although I retain much of the theory, I have found my knowledge of...

Hello :smile: I have a homework question regarding Gaussian Elimination, where I am supposed to use information in a block of text to get equations, and form an augmented matrix. There are 4 unknowns, but I can only seem to get 3 equations and 3 "checks", to see if the values I get are...

Go to: http://www.txt2day.com/" Enter the 10 digit phone number, no dashes Return e-mail (optional) You select the destination cell phone's provider Normal tweet text message Answer the anti-spam question (don't forget or the message won't be sent) Press send... That's it... Rhody...