This is something that has had me stumped for quite a while. I'm working with a microchip microcontroller to control this LCD: http://www.varitronix.com/Product/LCD/VIM-332-DP(R0).pdf
As you can see it has no controller. I'm manually controlling the segments. Now the issue is that I need to...
I want to write a research paper on general relativity or mathematical physics.
I am a college freshman (will become sophomore after this summer) belonging to an engineering major. In this summer break, I have managed to learn about tensors. Currently, I am following the Respected Professor...
Writing Sci-fiction Graphic Novel need advisement in "space travel"
I've used VASIMR rockets as a reference and cited them as precursors to what now allows "rapid stellar travel" at say Earth to Mars in forty eight hours. Any advice on how this could be at least theoretically possible?
http://tribstar.com/news/x1435410216/Archaic-Method-Cursive-writing-no-longer-has-to-be-taught (Terre Haute Tribune-Star)
I type faster and more neatly than I can write, so the only things I write now are my signature, shopping lists and other short lists, notes on freehand diagrams, and...
I'm writing some of my proofs up in french in order to practice the language and I have a few questions for any of you french speakers out there.
First, what voice is generally used 'nous' or 'on'.
Second when I am telling the reader to perform this or that mathematical procedure, do I use...
Fortran95 HELP!
Hi everyone,
I have problem with writing a procedure in Fortran. I'm a newbie so any help will be appreciated.
So the problem is as follow: I have written a program which reads some data from input file and then calculates some stuff using read values. Now what i have to do...
Don't get confused by the title:
Simple and short:
My sister for some reason can't write properly (alignment, neatness), if she doesn't turn her book horizontally. I've been forcing her to practice working with the book vertically but she's struggling and the writing is coming out sloppy...
I'd like to first say that I'm not really sure which forum this is supposed to belong in. This one seems to fit best, but my question may be better in one of the math/physics forums...
I'm planning on going through the resources Chris Hecker recommends in his article Physics References...
actually i want two write a review article on issues related to civil engineering such as earthquake resistance,concrete(semi transparency) etc and i want to get it published. i have thought about a number of topics which were not so interesting .please suggest me with some good interesting...
Good day, I have been given the task to create an inventory database for the books at the library at my school using the RFID to monitor the books. However the books have specific codes based on their type and location in the library. I was wondering if someone could give me some information as...
About the Analytical Physics constraint writing...
I have added a photo about my problem. My problem is why did we write while calculating constraint values as d/2. you will see on the picture what I am saying, I cannot see the reason of writing d/2
hey guys, so I am new to linear algebra and is just learning matrix algebra
let A = a_ij be a 2 x 3 matrix, defined by a_ij = 2i + j. Write out A
would it just be
|1 2 3|
|4 5 6|
Hi,
is possible to set up somehow cursor on end file.txt position for write function ? I can use only read,close, open functions from /fcntl.h/,
+ anybody know how convert number system from one to another and to write result into the file in correct way... e.g. I need covert [123456]Z7...
I want to use MikTex to do my physics laboratory informs. The thing is I have to write the informs in spanish, and I've found that I can't use the tilde on my work, which is really bad, because I can't write it orthographically as it must be done e.g. I can't write Dinámica, but I can write...
hello! I'm new over here.. Hope I'm writing where it should be written.
What is the solution of
x=tangent(x)
?
Well.. in fact I'm looking for the point where the graphs of function tangent and its inverse, arctangent, intersect each other (if we plot them on the same...
For finding domain of a function in Rn, I have jot down some of the points. Assuming, if one or more of these 'x'es are a part of the expression of a function f(x1, x2, x3,…, xn), we do the following in writing down the domain:
- for √x we write x≥0
- for 1/x we write x≠0
- for 1/√x we...
Hello,
I have a BS in Engineering. I am applying to science writing graduate schools for a plethora of reasons. Are there any science writers on this forum that could offer me advice on the lifestyle they live (is it hard to find work? lots of travel involved? making a name for yourself...
Perhaps this is more of a poll...
How do you write your numerals in the U.S.?
1. My ones are European-esque if the 1 is to stand alone (that is, if it's not a 1 that's going to be in the middle of an unambiguous number, then it will have a hook and a base...but if it's smack in the...
Hi, this is my first post, so if it's in the wrong place please let me know. I'm writing a bit of fiction, more fantasy than science fiction, but I don't want to immediately offend the sensibilities of everybody who knows something about science. I really like the idea of a six dimensional...
I am very new with Mathematica and I need help writing a program that generates a Farey Sequence.
Farey[n] := ?
The result should appear as follows, for those values of N.
Farey[1] = {0/1,1/1}
Farey[2] = {0/1,1/2,1/1}
Farey[3] = {0/1,1/3,1/2,2/3,1/1}
Farey[4] =...
I need some help writing a Farey Sequence in Mathematica, so far this is all I have:
FareySequence[n_] := GCD[a, b]; While b : a, b = b, a % b;
result := a
Simplify[a, b];
g := GCD[a, b]
result := (a/g, b/g)
I am very new to programming, please help!
Homework Statement
How do you write Fe2S3 in IUPAC method, it would be great if you could explain and show some examples of IUPAC methods.
The Attempt at a Solution I just want to see how you do one of them then I can probably get the rest, thanks a lot.
The Farey sequence F_n (F subscript n) for any positive integer n is the set of irreducible rational numbers a/b with 0<(or equal to)a<(or equal to)b<(or equal to) n and (a,b)=1 arranged in increasing order. The first one should be:
F_1 = {0/1,1/1}
F_2 = {0/1,1/2,1/1}
F_3 =...
I'm writing this letter to get some advice in terms of which school (my two top choices, already accepted) his company and the industry hire more from. I'm an engineering major by the way. Also want to ask about any internship opportunities, but I don't know if it's appropriate to ask him.
I was...
Homework Statement
I'm having some trouble understanding exactly how the eigenstates of this matrix are being presented.
A= ( 0 -i
i 0 ) <- matrix
I can find the eigenvalues to be +/- 1 which gives the eigenvectors to be x=-iy or x=iy.
The eigenvectors are then being...
I'm working on a report that describes the input and output from Mathematica. Is there any standard way for me to represent them? I done this openoffice already but I want to put my paper into latex. What I currently have in Openoffice format was like this:
Input:
[1] ________
[2] ________...
Ancient Tablet Found: Oldest Readable Writing in Europe
Found at a site tied to myth, Greek tablet survived only by accident, experts say.
http://news.nationalgeographic.com/news/2011/03/110330-oldest-writing-europe-tablet-greece-science-mycenae-greek/
:cool:
An example of Celtic text -...
Homework Statement
Hey guys
been losing a lot of marks for my discussion on my prac reports, as i tend to talk too much irrelevant stuff like errors (which should be in error analysis)
could someone please tell what i should include/talk about in a discussion? i know to talk about the...
Can someone please explain to me how exactly you write down a metric, say the FLRW metric in matrix form. Say we have the given metric here.
ds^2 = dt^2 - R(t)^2 * [dw^2 + s^2 * (dθ^2 + sin^2(θ)dΦ^2)]
Thank you.
Hello, I am currently at work and I'm going to spend about 5 hours a day in front of the computer. This would be an excellent time to get some of my MATLAB homework done and prepare for my midterm. The thing is, this computer does not have MATLAB and I am not able to download anything (Wordpad...
I am writing a paper for a journal. The paper is supposed to have quite a few circuit diagrams. What software should I use to draw the circuit diagrams?
Homework Statement
I have to fill in the missing info...
Y=A*Sin[B(x-c)] +D
A = 3. For finding the amplitude all I have to do it multiply 1/2 by the range?
D = 3. For finding upward shift all I have to do is see if the center has moved up?
period = 4pi/3 so B = 3/2
I am confused on...
Hello,
Recently I've been attempting to put together a brief book on mathematics. The first section is short and introductory as I lead up into calculus. I kind of feel bad that I skipped over conics, geometric series, permutations and combinations, transformations of functions, and so many...
Homework Statement
I worked a textbook problem earlier where I had to write the Lagrangian for a pendulum (of mass m and length l) connected to a massless support moving along the x-axis. I chose the angle theta as my generalized coordinate, since the problem specified that the acceleration of...
I am getting a ton of errors trying to compile this. I am including PAPI and ATLAS calls but so far I think those calls are working ok.
For each subroutine, I am getting "unclassifiable statement" for the subroutine definition as well as "unexpected implicit none" and "expecting end program...
Hey guys... here is the thing.. i kinda blur to talk about the operation..
i need help from u guys to give me ideas to write about the operation..
i attempted the question already.. but, i think it wasn't enough explanations.
[PLAIN]http://img401.imageshack.us/img401/8831/74967107.jpg
Homework Statement
how do u approach a question like that?
write an equation that satisfy the following simultaneously
a) the domain of f is (-Infinity, 0) U (0,infinity)
b) f is continuous on its domain (that is everywhere except at x = 0)
c) lim f(x) as x--> 1- (from the left) = -...
How do I write this in calculus notation?
[delta]E = (-2.178 x 10^(-18) J) / (n^2 - n_0^2)
were [delta] is the Greek letter delta used to represent change of
E = Energy
-2.178 x 10^(-18) J = Different form of Rydberg's constant
J is the unit for work Joules
n = energy level of an atom...
I know its xmas eve and all but I'm pretty bored (bah humbug!) anyway I am just going to while away my time listening to songs on youtube... and writing random stuff here on pf...
Hi all, I have taken Calc III, Linear Algebra (Bretscher's book), and an ODE class, which have all been mostly computational. I plan on taking upper level math courses such as abstract algebra and analysis, and my understanding is that the latter are proof based rather than computational. Are...
This is all done really fast for fun, may be some mistakes.
I'm a paintball player, and there seems to be a very prevalent misconception that certain paintball markers shoot paintballs greater distances than others.
This isn't true because before actually playing, your marker must be...
I'm currently filling our applications and one of the applications requires a statement of purpose of "approximately 1000 words." The one I have written is currently 1500 words so it obviously has to be trimmed down. But as 1000 words is not a strict cap, I was wondering what a reasonable amount...
I've been thinking a lot about my education lately and I'm thinking science may not be the right path for me. I won't go into a list of reasons why, but I'm pretty sure it's just not for me. However, I'm still fairly interested and knowledgeable on the basics (I'm in my second year of...
I'm writing personal statements for my grad school applications, and in most of the threads in this forum giving advice for personal statements, they say to add a paragraph talking about specifically what research at that university interests you, and what professors you might like to work with...
I am a mechanical engineering student at the Oregon Institute of Technology and am looking to interview a mechanical engineer for a writing class. I am interested in learning what types of communication you use such as proposals and recommendation reports. If anyone would be willing to help with...
Didn't really know what board to put this post on, but anyway...
After finishing a 10 day lab project, I'm expected to produce a 2 (possibly 3) page conference paper about it. Having never written a conference paper before I'm not too sure what to include and what not to...
I have...
Homework Statement
Write the equation used to calculate net force on a block of mass m that is accelerating down a ramp.
Homework Equations
The Attempt at a Solution
Okay I think that we are going to have to use the equation F - f = ma. Since the question says to find the net...
Homework Statement
Of the following, which correctly shows an ion pair and the ionic compound the two ions form?
Homework Equations
a. Fe3+, O3+ = Fe2O3
b. Cr3+, I- = CrI
c. Cu2+, O2- = Cu2O2
d. Sn4+, N3- = Sn4N3
The Attempt at a Solution
a. Fe3+, O3+ = Fe2O3...
I just got back my score on the writing section of the general GRE. Apparently I got a 3.5, which puts me in the 25th percentile. Now I don't mean to sound arrogant, but writing has always been a strength of mine. When I write papers, either for physics or humanities classes, they usually come...