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/sci/ - Science & Math

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File: 2.23 MB, 2880x1920, VecCalc.png [View same] [iqdb] [saucenao] [google]
944261 No.944261 [Reply] [Original]

i'll post about if it uploads this time...

>> No.944267

hey it worked
weird...
so anyways how do i make something like this?

>> No.944271

mspaint. you cant type maths symbols like that

>> No.944276

>>944271
looks like LaTeX
but i don't recognize the format
also it's a .png instead of .pdf

>> No.944286
File: 67 KB, 468x596, 20081210.gif [View same] [iqdb] [saucenao] [google]
944286

bumping with smbc/xkcd and whatever

>> No.944288

>>944267

There are some LateX modules for posters and shit..

>> No.944290

>>944276
Yes, I'd say that most of it was written on LaTeX. Also, awesome, do you have more?

>> No.944291
File: 152 KB, 504x1314, 20100128.gif [View same] [iqdb] [saucenao] [google]
944291

>> No.944303
File: 83 KB, 625x237, 20081101.jpg [View same] [iqdb] [saucenao] [google]
944303

>>944290
i want to make more
but i only know how to use latex for documents
i want to know how to make posters :(

>> No.944332

Bad integral notation, but other then that it's a pretty nice "cheat sheet".

For LaTeX'ing posters:
http://nxg.me.uk/docs/posters/

>> No.944334

A x B = B x A

HOLY SHIT WTF JUST HAPPENED

>> No.944340

>>944334
It doesn't say that...?
<div class="math">\vec{A}\times\vec{B} = -\vec{B}\times\vec{A}</div>

>> No.944342

>>944332
>This document is in places maddeningly unspecific.
YEAH NO KIDDING
it says i'm missing a file
i think i have the file i just don't know which folder to put it in

>> No.944347

>>944342
Then do some more Google'ing: LaTeX posters are made all the time, there should be some decent guide out there.

>> No.944348
File: 106 KB, 504x1304, 1273788764347.gif [View same] [iqdb] [saucenao] [google]
944348

>>944342
forgot a picture

>> No.944354
File: 22 KB, 504x467, 20100117.gif [View same] [iqdb] [saucenao] [google]
944354

>>944347
they all assume i'm a cs major
which folder do i put the new code in?
the a0poster.cls that they keep bugging me about

>> No.944360

>>944354
I'd put it in the working folder: the .cls file provides a class description which you can use with \documentclass{a0poster} in your .tex file.

>> No.944364
File: 97 KB, 504x1004, 20100219.gif [View same] [iqdb] [saucenao] [google]
944364

>>944360
everytime?
that seems inefficient...

>> No.944374

>>944364
I'm not sure what you mean. In every .tex file you declare your document class with \documentclass{report}, for instance. With the a0poster.cls file you provide a customized document class, which you can then include.

>> No.944390

>>944374
everytime i have to put it in the same folder that i'm working in right?
so do i have to do that with all the missing files?

>> No.944391

>>944340
Well I was substituting the dot for an x
Because I thought a dot = x = multiplication.

>> No.944398

>>944391
dot = inner product
x = outer product

>> No.944416

OP here
i guess i really have no clue how to use LaTeX
i've been using winedt and miktex to do everything
now there's all these missing files and so many errors :(

>> No.944432

could you post your error log? Maybe some things aren't properly installed.

>> No.944443

>>944432
200 lines
...
LaTeX Font Info: Checking defaults for OML/cmm/m/it on input line 34.
LaTeX Font Info: ... okay on input line 34.
LaTeX Font Info: Checking defaults for T1/cmr/m/n on input line 34.
LaTeX Font Info: ... okay on input line 34.
LaTeX Font Info: Checking defaults for OT1/cmr/m/n on input line 34.
LaTeX Font Info: ... okay on input line 34.
LaTeX Font Info: Checking defaults for OMS/cmsy/m/n on input line 34.
LaTeX Font Info: ... okay on input line 34.
LaTeX Font Info: Checking defaults for OMX/cmex/m/n on input line 34.
LaTeX Font Info: ... okay on input line 34.
LaTeX Font Info: Checking defaults for U/cmr/m/n on input line 34.
LaTeX Font Info: ... okay on input line 34.
LaTeX Font Info: Try loading font information for OT1+ppl on input line 34.

("C:\Program Files\MiKTeX 2.8\tex\latex\psnfss\ot1ppl.fd"
File: ot1ppl.fd 2001/06/04 font definitions for OT1/ppl.
)
("C:\Program Files\MiKTeX 2.8\tex\context\base\supp-pdf.tex"
[Loading MPS to PDF converter (version 2006.09.02).]
\scratchcounter=\count106
\scratchdimen=\dimen135
\scratchbox=\box55
\nofMPsegments=\count107
\nofMParguments=\count108
\everyMPshowfont=\toks18
\MPscratchCnt=\count109
\MPscratchDim=\dimen136
\MPnumerator=\count110
\everyMPtoPDFconversion=\toks19
)
PSTricks error. See User's Guide for further information.
Type H <return> for immediate help.
! Graphics parameter `1' not defined..
\@pstrickserr ... immediate help.}\errmessage {#1}
\endgroup
l.35 \maketitle

?
! Undefined control sequence.
<recently read> \c@lor@to@ps

l.35 \maketitle

?
! Undefined control sequence.
\pst@usecolor ...\string \color@ #1\endcsname \@@
\space
l.35 \maketitle

?
! Undefined control sequence.

>> No.944449

>>944398
Oh okay.
English is not my main language, but "Inner" and "outer" product sounds like derivative...? Is that what it is?

D(e^2x) = 2*e^2x
etc

>> No.944463

>>944449
Eh, no :D
Inner product (Cartesian):
<div class="math">\vec{A}\cdot\vec{B} = A_x B_x + A_y B_y + A_z B_z</div>
Outer product (Cartesian):
<div class="math">\vec{A}\times\vec{B} = \left (A_y B_z - A_z B_y\right )\hat{x} + \left (A_z B_x - A_x B_z\right )\hat{y} + \left (A_x B_y - A_y B_x\right )\hat{z}</div>

>> No.944473

>>944449
i call them something different
dot= dot product
X= cross product

for two vectors
<span class="math">\vec{r}=r_i \hat{i}+r_j \hat{j}+r_k \hat{k}[/spoiler]
and
<span class="math">\vec{F}=F_i \hat{i}+F_j \hat{j}+F_k \hat{k}[/spoiler]

<span class="math"> r\cdot F= r_i F_i +r_j F_j + r_k F_k [/spoiler]
<span class="math"> r\times F = (r_j F_k-r_k F_j)\hat{i}+ (r_k F_i-r_i F_k)\hat{j}+ (r_i F_j-r_j F_i)\hat{k}[/spoiler]

i don't think there's many mistakes in that....

>> No.944479

>>944463
ohgodwat
is that uni calculus or just some basic shit I've missed?

In 4 months I am going to study Engineering (Chemistry and Physics), perhaps it will be covered there?

>> No.944486

>>944479
definitely
any physics class where you use vectors will cover it eventually

>> No.944494

>>944486
I've heard that grades are of little importance in uni, especially for engineers... true/false?
(As long as you pass, that is)

>> No.944495

>no hyperbolic coordinate system

You are small-time.

>> No.944503

>>944479
Uni vector calculus. You will encounter it.

>> No.944506

>>944494
people tell me they are a big deal
and my parents who pay for the university say there a big deal
but i haven't seen any evidence of that

>> No.944525

>>944494
Well, it's nice to score high grades. They may get you into honours tracks, if that is your wish. I personally don't care too much for grades: having fun studying is more important as long as you pass your courses.

>> No.944529

>>944506
But your employer isn't exactly going to scan your grades and say
"Hmm... So, mister Anderson, I see you have a B+ in Calculus C. I am sorry but you are not qualified for this job, we need real, proper people who understand vector analysis here and not liberal rascals who don't give two shits about our inner and outer products here at 'Inner and outer products Incorporated, goodbye"

I mean c'mon, It can't be THAT important...

>> No.944533

dot product = scalar product = multiplying two vectors to give a scalar. i.e. a.b=|a||b|cos(theta)

cross product = vector product = multpilying two vectors to give a vector i.e aXb = |a||b|sin(theta)

>> No.944549

>>944529
i try to get decent grades
at least within my major
i have exams starting monday and i find the best way to study is to make study guides
which is why i've been trying to make some cool ones in LaTeX
does anyone have a really basic template like the one in the first pic?
all the ones i find online have all these special fonts/effects

>>944506
also *their
it was bugging me

>> No.944551 [DELETED] 

>>944533
> <span class="math">\vec{A}\times\vec{B} = \|\vec{A}\|\|\vec{B}\|\sin\theta
Yeah, that is not how an outer product works. You don't even get a vector this way.[/spoiler]

>> No.944558

>>944533
> <span class="math">\vec{A}\times\vec{B} = \|\vec{A}\|\|\vec{B}\|\sin\theta[/spoiler]
Yeah, that is not how an outer product works. You don't even get a vector this way.

>> No.944566

>>944558
>vector = number
>mocking about axb giving a pseudovector

>> No.944576

This is cross product, you get a vector

<div class="math">\begin{vmatrix}
\overrightarrow{i} & \overrightarrow{j} & \overrightarrow{k} \\
A_{x}&A_{y} &A_{z} \\
B_{x} &B_{y} & B_{z}
\end{vmatrix} = \overrightarrow{A}\times \overrightarrow{B}</div>

stop bitching now

>> No.944581

>>944551
yeah, |a||b|sin(theta) is just the expression for the magnitude of the cross product. I was hoping it would jog people's memories enough to see the difference between it and the dot product.

a better way of expressing the cross product would be
(a1, a2, a3)X(b1, b2, b3)= the determinant of the matrix:
i j k
a1 a2 a3
b1 b2 b3

>> No.944583

>>944576

I fail, fucking latex

>> No.944587

>>944583
matrix rendering has been disabled. :(

>> No.944588

>>944583
>fucking 4chan jsMath shit
fix'd

>> No.944627

>>944566
Nah, it's just stated wrong. I've seen so many people mess up because they didn't know what they were doing. Of course you can use <span class="math">\sin\theta[/spoiler] to determine the magnitude of the vector and derive the direction with the right hand rule or something, but saying <span class="math">\vec{A}\times\vec{B} = \|\vec{A}\|\|\vec{B}\|\sin\theta[/spoiler] is just incorrect.

>> No.944639

>>944627
yeah .. but you gotta be quite dumb not to see what was really meant.

vector on left side .. scalar on right side...

>> No.944658

and my thread is now about cross products
and for some reason it wasn't settled by:
>>944473
>>944463

>> No.944682

Incorrect integral notation is incorrect.

>> No.944687

>>944682
then re do it yourself
and post the source code
PLEASE

>> No.944729

>>944687
I'm not going to do the whole thing, but for Stokes/Green and Gauss:
<div class="math">\oint_{\partial\mathcal{S}}\! \vec{F}\cdot \mathrm{d}\vec{l} = \int_\mathcal{S}\! \left ( \nabla \times \vec{F}\right ) \cdot \mathrm{d}\vec{a}</div>
<div class="math">\oint_{\partial\mathcal{V}}\! \vec{A}\cdot \mathrm{d}\vec{a} = \int_\mathcal{V}\! \left ( \nabla \cdot \vec{A}\right ) \, \mathrm{d}\tau</div>

>> No.944734

>>944729
lame...

>> No.944743

>>944734
These two are pretty damn fundamental, how can you call them lame?

>> No.944751

>>944743
cuz you didn't show me how to write a poster
which was the point of this thread

>> No.944762

>>944751
http://www.sgeier.net/poster/
http://www.physicsforums.com/showthread.php?t=263021
http://www.phys.ufl.edu/~pjh/posters/poster_howto_UF.html
http://andreas.welcomes-you.com/projects/a0poster/
http://homepages.inf.ed.ac.uk/robert/posters/advanced.html
...
the list goes on.
There are many guides to be found when Google'ing "making a poster in latex".

>> No.944842 [DELETED] 

>>944762
>implying i haven't been doing this all day and still can't get any of them to work
did you even read the rest of the thread?

>> No.944866

>>944842
I have actually been following this thread for the past 30 minutes trying to help you, tanks.
Try posting the error logs (use pastebin.net or something) so we can see if it isn't the installation of MikTeX you've messed up or anything. The guides for posters made with LaTeX are fine and I got them working on my machine, so I don't think they are the problem.

>> No.944904

>>944866
m'kay
never used pastebin before
http://pastebin.com/2Zch6s0h
i thought>>944443 was sufficient

>> No.944918

>>944904
Ok, it seems like there are problems with including graphics and colors. Do you have \usepackage{graphicx,color} in your preamble?

>> No.944929

>>944918
not graphicx, since he wants to use .eps images.

>> No.944940

>>944929
That is true, however it doesn't recognise the .eps extension....

>> No.944950
File: 110 KB, 1249x701, circledbutton.png [View same] [iqdb] [saucenao] [google]
944950

>>944918
no because i just downloaded the .tex file and ran the compiler
just tried recompiling it didn't work
the circled button in the attached pic is the one i usually use

>> No.944960

>>944950
This explains the picture related errors, as you probably didn't download them as well. However, you should still have an output. I see you use pdftex. Try latex -> dvips -> ps2pdf.

>> No.944993

zomg it worked
so is there a better program than winedt
it keeps trying to force me to use acrobat reader and i want to use foxit

>> No.945005

>>944993
On Windows I used to use TeXnicCenter. On Linux I just edit my .tex files using vim and LaTeX them manually. I'm sure there's a way to set up the LaTeX -> dvips -> ps2pdf sequence to be executed instead of pdfTeX.

>> No.945098

>>944549

There is an elite, super-secret society that you *might* get invited to if your grades are flawless. Fame, fortune, more booty than you'll ever be physically capable of enjoying.

Otherwise, don't worry about it. We don't give a crap about the plebes. You'll be fine with whatev, 'slong as you don't fail.

>> No.947513

>>944473
That terminology comes from differential forms. The cross product is not well defined in higher dimensions, but the outer (wedge) product is.