LaTeX Introducing LaTeX Math Typesetting

[Doc Al]

Read This: Please delete practice posts :-)

Folks:

Use this thread to practice your Latex (that's what it's for), but unless you've come up with something that hasn't been done before in the last gazillion posts: Please delete your post after you're done!

Of course, if you've come up with something new: Leave it there for others to learn from.

Thanks!

 

[Astronuc]

robphy, I just clicked on kishtik's equation and I can get the LaTeX source. In your post though, it is a png file.

What I have noticed it that if one does not close the LaTeX source code viewing window, subsequent LaTeX code is added to the window (by right clicking on the LaTeX formula), and one has to scroll down to view.

 

[robphy]

actually, it was intended to verify that the IMG tag works here (and possibly in other non-GD areas)

 

[bomba923]

True or False?

\boxed{\begin{gathered}<br /> \forall p,q,r \in \mathbb{N}\;{\text{where }}p &gt; q &gt; 0, \hfill \\<br /> \exists \left\{ {a_0 ,a_1 ,a_2 , \ldots ,a_n } \right\} \subset \bigcup\limits_{i = 0}^{p - 1} {\left\{ {\frac{i}<br /> {q}} \right\}} \hfill \\<br /> {\text{such that }}\frac{r}<br /> {q} = \sum\limits_{k = 0}^n {a_k \left( {\frac{p}<br /> {q}} \right)^k } \hfill \\ <br /> \end{gathered}}

\boxed{\begin{gathered}<br /> \forall p,q \in \mathbb{N}\;{\text{where }}p &gt; q &gt; 0, \hfill \\<br /> \mathbb{N} \subset \bigcup\limits_{k \geqslant 0} {\left\{ {\sum\limits_{n = 0}^\infty {\left( {\left\lfloor {\frac{k}{{p^n }}} \right\rfloor - p\left\lfloor {\frac{k}{{p^{n + 1} }}} \right\rfloor } \right)\left( {\frac{p}{q}} \right)^n } } \right\}} \hfill \\ <br /> \end{gathered}}

 

[twoflower]

<br /> ...\ =\ (\mbox{Lagrange})\ \sum_{i=1}^{n} \frac{\partial f}{\partial x_i} \left( \xi^{i} \right) h_i\mbox{ , kde }\xi^{i} \in [a_i, a_i\ +\ h_i]<br />

<br /> \xi^{i} = [a_i, ..., a_{i-1}, a_i\ +\ \vartheta h_i, a_{i+1}\ +\ h_{i+1}, ..., a_n\ +\ h_n]\mbox{, }\vartheta \in (0,1)<br />

 

[Cincinnatus]

testing:
x^a_i

 

[twoflower]

<br /> \left\{ u_{n}\right\}<br />

is bounded in

<br /> $W^{1,N-1}\left( \Omega;\mathbb{R}^{N}\right)<br />

,

<br /> \left\{ \mathrm{adj}\nabla u_{n}\right\} \subset L^{\frac{N}{N-1}}\left( \Omega;\mathbb{R}^{{N}\times{N}}\right)<br />

and if

<br /> u\in BV\left( \Omega;\mathbb{R}^{N}\right)<br />


are such that

<br /> u_{n}\rightarrow u<br />

in

<br /> L^{1}\left( \Omega;\mathbb{R}^{N}\right)<br />

and

<br /> \[ \det\nabla u_{n}\overset{\ast}{\rightharpoonup}\mu \]<br />

in the sense of measures, then for

<br /> \mathcal{L}^{N}<br />

a.e.

<br /> x\in\Omega$ \[ \det\nabla u\left( x\right) =\frac{d\mu}{d\mathcal{L}^{N}}\left( x\right). \]<br />

The result is sharp and counterexamples are provided in the cases where regularity of

<br /> \left\{ u_{n}\right\}<br />

or the type of weak convergence are weakened.

 

[StatusX]

Does anyone know of a program I can use to compile latex code? Any output format is fine, pdf, gif, etc. And simpler is better, I'm no computer programmer.

 

[Psi-String]

\oint \vec{E} \cdot d \vec{A} =\frac{q}{\epsilon_0}

\oint \vec{B} \cdot d \vec{A} =0

\oint \vec{E} \cdot d \vec{s} = -\frac{d \Phi_B}{dt}

\oint \vec{B} \cdot d \vec{s} = \mu_0 i + \mu_0 \epsilon_0 \frac{d \Phi_E}{dt}

 

[Sartak]

Of course, I have to test too. ;)

\frac{d}{dx} f(x) = \lim_{\Delta x \rightarrow 0} \frac{f(x + \Delta x) - f(x)}{\Delta x}

\int^b_a f(x) dx = F(b) - F(a)

 

[rea]

sure...

Does anyone know of a program I can use to compile latex code? Any output format is fine, pdf, gif, etc. And simpler is better, I'm no computer programmer.

For Windows systems, there is the option of MikTeX also there exist ghostscript and other similar packages you will need, they are free.


In Linux, I exactly don't know, but normally the distributions contain TeX and LaTeX, also there is a editor that I will like to understand called LyX, LyX is also available IRC for Windows...







Do you know any other good editor for TeX files? for learn the basics?

 

[StatusX]

For Windows systems, there is the option of MikTeX also there exist ghostscript and other similar packages you will need, they are free.

I downloaded MikTex, but it seems to need a lot of other programs to work. I couldn't figure it out. I'm just looking for some program where you can give it a filename and it will compile it into some reasonable output form (preferably pdf). Do you know something like this, or if not, do you know how I can use MikTex to do what I need?

 

[VietDao29]

I dunno, but I think MikTex only provides a Yap viewer, i.e some kind of integrated environment for beautiful formulae (maybe I'm wrong though).
If you want to translate LaTeX code to .pdf files, I'd recommend TeXnicCenter
Just download it, and run it. It can convert LaTeX to PDF, LaTeX to DVI (viewed with yap viewer), or LaTeX to PS.
Hope that's what you are looking for.

 

[StatusX]

I dunno, but I think MikTex only provides a Yap viewer, i.e some kind of integrated environment for beautiful formulae (maybe I'm wrong though).
If you want to translate LaTeX code to .pdf files, I'd recommend TeXnicCenter
Just download it, and run it. It can convert LaTeX to PDF, LaTeX to DVI (viewed with yap viewer), or LaTeX to PS.
Hope that's what you are looking for.

Hey, thanks a lot. That's just what I needed.

 

[rea]

I downloaded MikTex, but it seems to need a lot of other programs to work. I couldn't figure it out. I'm just looking for some program where you can give it a filename and it will compile it into some reasonable output form (preferably pdf). Do you know something like this, or if not, do you know how I can use MikTex to do what I need?

Not all is easy.

You need all the tools, because Windows dosent provide a dvi visor or a ps visor, then you need download ghostscript (that are free also).

I dunno, but I think MikTex only provides a Yap viewer, i.e some kind of integrated environment for beautiful formulae (maybe I'm wrong though)

See the description by instance:

MiKTeX is an up-to-date TeX implementation for the Windows operating system.

TeX is a typesetting system written by Donald E. Knuth, who says that it is "intended for the creation of beautiful books - and especially for books that contain a lot of mathematics".

MiKTeX offers a complete set of utilities, macro packages and fonts, e.g., LaTeX, pdfTeX, ConTeXt, just to name a few.

In fact, I think that TeXnicCenter use MikTeX like the compiler, ie, texnicenter is only the IDE like there are IDEs for control compilers for programming languages in a nice enviroment, like DEv-cpp use Mingw package, or VS use make, ml and other command line tools.

NOW, with those aclarations, for use miktex, download the minimal installer, about 30Mb, if you need additional packages (aka more things to add), you can use a install center that is provided with miktex and download what you need... and is this one:

Getting updates

Use the update wizard (Start->MiKTeX->MiKTeX Update Wizard) to get the latest package updates.

the ghost script...

GPL Ghostscript 8.50
Posted on Wed, 04 Jan 2006 04:42:00 GMT
http://dojo.miktex.org/blogs/christian_schenk/archive/2006/01/03/247.aspx

that link to: http://sourceforge.net/project/shownotes.php?group_id=1897&release_id=382430

See that is a sf (source forge) page, then the summary of the project is: http://sourceforge.net/projects/ghostscript/ and the home page is http://www.ghostscript.com/

That is all you need:

Core files for TeX (compilation and related things to this process, macros, definitions,...):

1) MikTeX

Viewers:

1) Gostscript and related packages

And an editor for call the above programs:

1) TexniCenter
2) I suguest LyX really (is like WYSIWYG, but not at all, is an WYSIWYM, What You See Is What You Mean, note that because a diferent point of view, switch to it will be extrange XD.For read a more wide introduction in install and other tools: http://www.miktex.org/Links.aspx see that there is listed texnicenter as a editor... also there is listed Lyx, the one I recommend is more nice I think, really you should try it.

 

[StatusX]

Thanks for the info. I think TexnicCenter does what I need, and it's pretty simple.

 

[ksinclair13]

e^{\pi i}+1=0

 

[Sartak]

f(x) = \left\{\begin{array}{cc}x^2 \sin(\frac{1}{x}),&amp; \mbox{ if } x\neq 0\\0, &amp; \mbox{ if } x=0\end{array}\right

 

[AKG]

\sum _{k=1} ^{K} \left\lfloor\frac{n}{p^k}\right\rfloor &lt; \frac{n}{p-1}

n\cdot\sum _{k=1} ^{K} \left\lfloor\frac{1}{p^k}\right\rfloor &lt; n\left (\frac{1}{p-1}\right )

\sum _{k=1} ^{K} \left\lfloor\frac{1}{p^k}\right\rfloor &lt; \frac{1}{p-1}

\sum _{k=1} ^{K} \left\lfloor\frac{p^K}{p^k}\right\rfloor &lt; \frac{p^K}{p-1}

p^{K-1} + \dots + 1 &lt; \frac{p^K}{p-1}

(p^{K-1} + \dots + 1)(p-1) &lt; p^K

p^K - 1 &lt; p^K

 

[twoflower]

<br /> \xi^{i} = (a_1\ +\ h_1,\ a_2\ +\ h_2,\ ...\ ,\ a_{i-1}\ +\ h_{i-1},\ a_i\ +\ \vartheta h_i,\ a_{i+1},\ a_{i+2}...,\ a_{n})\mbox{, }\vartheta \in (0,1)<br />

<br /> \xi = (a_1 + h_1,\ a_2 + h_2,\ ...\ ,\ a_n + h_n)<br />

 

[bomba923]

Can someone please tell me the latex code for the little circle which denotes composition of functions?

Do you mean this symbol?

\circ

Just click on my LaTeX code. Here's an example:

f \circ g

 

[Alteran]

Could anyone suggest modern LaTeX to HTML utility for win32 system?
I imagine my visualization of documents as: in HTML there are LaTeX documents(or simply block of LaTeX code) and when displaying it will be transformed to HTML or image and will be visible as normal math (just as on this forum).

 

[Corneo]

Why is that every time I write a math equation and when I click preview, I can never see the equation. I always just see the message telling me that the graphic is being generated. I have to submit my message first before I can see it. Can anyone please explain.

 

[VietDao29]

Why is that every time I write a math equation and when I click preview, I can never see the equation. I always just see the message telling me that the graphic is being generated. I have to submit my message first before I can see it. Can anyone please explain.

That's an error with the update, and Greg is working on it.
You can read here :)

 

[Captain Zappo]

How do I insert a line break?

How do I insert a line break? I have read the pdf file explaining the different commands. I have tried the following:

\\
\ \
\\
\ \
\linebreak
\linebreak[4]
\linebreak[0]

and many others. All help would be appreciated.

 

[VietDao29]

How do I insert a line break? I have read the pdf file explaining the different commands. I have tried the following:

\\
\ \
\\
\ \
\linebreak
\linebreak[4]
\linebreak[0]

and many others. All help would be appreciated.

You may want to try \begin{array} and \end{array} commands.
Click on my LaTeX image to see the code.
\begin{array}{l} \mbox{Text 1} \\ \mbox{Text 2} \\ \frac{x}{2} = \frac{\gamma + \beta}{\varepsilon} \end{array}
This is covered in 3 .PDF files in the first post of this thread.

 

[michealsmith]

wow i have to ask how do u do that ...(btw thanks alot)

 

[Perturbation]

Is there a latex command for Feynman diagrams or contractions in QFT (the lines joining operators to denote propogators and things)?

 

[bomba923]

Hmm...I usually just delete and repost should any
problems with \LaTeX previewing occur :shy:

\mathop {\lim }\limits_{n \to \infty } \bigcup\limits_{i = 0}^{n!} {\left\{ {\frac{i}{{n!}}} \right\}} = \mathbb{Q} \cap \left[ {0,1} \right]

 

[Hootenanny]

How do you write 3D column vectors in \LaTeX?

 

[electronic engineer]

In my last post I've written:
v(w)=integral(v(t)*e^-jwt) ; - infinity<t<+infinity

how can i write it using latex?

https://www.physicsforums.com/showthread.php?t=113920
thanks.

 

[Doc Al]

In my last post I've written:
v(w)=integral(v(t)*e^-jwt) ; - infinity<t<+infinity

how can i write it using latex?

Page through this thread and you'll find several examples of integrals that you can copy.

 

[robphy]

<br /> \]<br /> <br /> \unitlength 1mm<br /> \begin{picture}(55,90)(0,0)<br /> \linethickness{0.3mm}<br /> \put(20,10){\line(0,1){80}}<br /> \linethickness{0.3mm}<br /> \multiput(20,90)(0.12,-0.12){250}{\line(1,0){0.12}}<br /> \linethickness{0.3mm}<br /> \multiput(20,30)(0.12,0.12){250}{\line(1,0){0.12}}<br /> \linethickness{0.3mm}<br /> \multiput(20,10)(0.12,0.2){250}{\line(0,1){0.2}}<br /> \put(15,30){\makebox(0,0)[cc]{t}}<br /> \put(15,60){\makebox(0,0)[cc]{\gamma t}}<br /> \put(15,90){\makebox(0,0)[cc]{k^2t}}<br /> <br /> \put(55,60){\makebox(0,0)[cc]{kt}}<br /> <br /> \end{picture}<br /> \[<br />

 

[RyanJ]

<br /> \]<br /> \unitlength 1mm<br /> \begin{picture}(55, 90)(0, 0)<br /> \linethickness{0.3mm}<br /> \put(20, 10){\line(0,1){80}}<br /> \linethickness{0.3mm}<br /> \multiput(20, 90)(0.12,-0.12){250}{\line(1, 0){0.12}} <br /> \linethickness{0.3mm}<br /> \multiput(20, 10)(0.12,0.2){250}{\line(0, 1){0.2}}<br /> \put(15, 55){\makebox(0, 0)[cc]{c}}<br /> \put(40, 76){\makebox(0, 0)[cc]{a}}<br /> \put(42, 39){\makebox(0, 0)[cc]{b}}<br /> \end{picture}<br /> \[<br />

Woo.. finally looks right :D

c^2 = a^2 + b^2

Ignore this please, messing with the triangle above :D

Cheers,

Ryan Jone

 

[RyanJ]

<br /> \begin{tabular}[t]{|l|ccccc|c|}<br /> \multicolumn{7}{c}{USAMTS Scores Round 1}\\<br /> \hline<br /> Name &amp; \# 1 &amp; \# 2 &amp; \# 3 &amp; \# 4 &amp; \# 5 &amp; Total\\<br /> \hline<br /> John Doe &amp; 5 &amp; 5 &amp; 3 &amp; 2 &amp; 1 &amp; 16\\<br /> Jane Doe &amp; 5 &amp; 5 &amp; 5 &amp; 4 &amp; 5 &amp; 24\\<br /> Richard Feynman &amp; 5 &amp; 5 &amp; 5 &amp; 5 &amp; 5 &amp; 25\\<br /> \hline<br /> \end{tabular}<br />

 

[electronic engineer]

v(w)=int^{+infty}^{-infty} v(t) \e^{-jwt}, \dt

 

[Living_Dog]

Hmmm well, I thought I knew how, but now I'm not so sure. I'll have to look around. Maybe Ambitwistor knows a trick to put a command that has been \renew'd back to its default behavior.

Also, I found this pdf of useful mathematical constructs, that goes a bit beyond what we already have:

http://amath.colorado.edu/documentation/LaTeX/Symbols.pdf

- Warren

Thank you!

I was looking for the integral over a closed surface symbol and the list had it: \large \oint.

-LD

 

[PhilosophyofPhysics]

\Phi_F = \oint \vec{\ F} \cdot \vec{dA}

\oint \vec{\ F} \cdot \vec{ds} = \nu_0 m_c_e_n_c

\oint \vec{\ G} \cdot \vec{dl} = - \frac{d \Phi _F}{dt}



\Phi_G = \oint \vec{\ G} \cdot \vec{dA} = \frac{m_e_n_c}{\gamma _0}

\vec{\ F _f} = m \vec{\ v} \times \vec{F}

\vec{\ F _f} = m_c \vec{\ L} \times \vec{F}

d\vec{\ F} = \frac{\nu _0}{4\pi} \frac{m_c \vec{\ ds} \times \vec{r}}{r^3}

u_G = \frac{1}{2}\gamma _0 G^2

u_F = \frac{F^2}{2\nu _0}

 

[AKG]

0 &lt; k \leq m &lt; n,\ \ \gcd\left({{n}\choose{k}},{{n}\choose{m}}\right) &gt; 1

{{n}\choose{k}}{{n-k}\choose{m-k}} = {{n}\choose{m}}{{m}\choose{k}}

{{n}\choose{k}} \left| {{n}\choose{m}}{{m}\choose{k}}

\gcd\left({{n}\choose{k}},{{n}\choose{m}}\right) = 1

{{n}\choose{k}} \left| {{m}\choose{k}}

{{n}\choose{k}} &gt; {{m}\choose{k}}

\gcd\left({{n}\choose{k}},{{n}\choose{m}}\right) &gt; 1

 

[Living_Dog]

Circles and Beyond

The PSPICTURE Environment:
http://www.ursoswald.ch/LaTeXGraphics/pstricks/pstricks.html


NASA Index of LaTeX instructions plus so much more:
http://www.giss.nasa.gov/tools/latex/ltx-2.html

-LD

PS: I tried a few and none of it works here. So I editted the post down to the URLs as an FYI.

 

[robphy]

<br /> \]<br /> <br /> \unitlength 1mm<br /> \begin{picture}(55,90)(0,0)<br /> \linethickness{0.3mm}<br /> \put(20,10){\line(0,1){80}}<br /> \linethickness{0.3mm}<br /> \multiput(20,90)(0.12,-0.12){250}{\line(1,0){0.12}}<br /> \linethickness{0.3mm}<br /> \multiput(20,30)(0.12,0.12){250}{\line(1,0){0.12}}<br /> \linethickness{0.3mm}<br /> \multiput(20,10)(0.12,0.2){250}{\line(0,1){0.2}}<br /> \put(15,30){\makebox(0,0)[cc]{t}}<br /> \put(15,60){\makebox(0,0)[cc]{\gamma t}}<br /> \put(15,90){\makebox(0,0)[cc]{k^2t}}<br /> <br /> \put(55,60){\makebox(0,0)[cc]{kt}}<br /> <br /> \end{picture}<br /> \[<br />

Let me try...

<br /> \]<br /> \usepackage{pstricks, pstcol, pst-text}<br /> <br /> \begin{pspicture}(-4, -3.2)(3, 0.2)<br /> \psset{linecolor=white} % hidden<br /> \pstextpath<br /> {\pscurve(-4, -2)(-2, 0)(0, -3)(2, -1)%<br /> (3, -2)(5, -3)}<br /> {\color{blue} % font color<br /> If you want to type<br /> $(a+b)^n=\sum_{k=0}^n {n\choose k}<br /> a^{n-k}b^k$ and let it follow along <br /> a curving line \ldots} <br /> \end{pspicture} <br /> \[<br />
I think the problem is that a line like
"\usepackage{pstricks, pstcol, pst-text}"
may call packages that are unavailable to this system... or maybe it's that this line must come before the \begin{document} line, which we wouldn't have access to.

I think you'll just have to make do with the picture environment.
But one can get it to do some interesting stuff...
for example, https://www.physicsforums.com/showpost.php?p=261562&postcount=300

 

[Perturbation]

Is there a latex command for Feynman diagrams or contractions in QFT (the lines joining operators to denote propogators and things)?

Anyone? They would be kinda useful.

 

[Greg Bernhardt]

latex

trwegfdgdfgfd

 

[Greg Bernhardt]

latex

fsdagdfgsdgf

 

[chroot]

E=mc^6

- Warren

 

[chroot]

<br /> \begin{gathered}<br /> \varepsilon _x = \bar \varepsilon _x = \frac{{d^2 }}<br /> {{12}}\left( {M^2 - 1} \right) \hfill \\<br /> d = \sqrt {\frac{{12\bar \varepsilon _x }}<br /> {{M^2 - 1}}} \hfill \\<br /> M = \sqrt {\frac{{12\bar \varepsilon _x }}<br /> {{d^2 }} + 1} \hfill \\ <br /> \end{gathered} <br />

LaTeX is functional again.

- Warren

 

[dav2008]

What's up with the white background?

 

[robphy]

\] \unitlength 1mm \begin{picture}(55,90)(0,0) \linethickness{0.3mm} \put(20,10){\line(0,1){80}} \linethickness{0.3mm} \multiput(20,90)(0.12,-0.12){250}{\line(1,0){0.12}} \linethickness{0.3mm} \multiput(20,30)(0.12,0.12){250}{\line(1,0){0.12}} \linethickness{0.3mm} \multiput(20,10)(0.12,0.2){250}{\line(0,1){0.2}} \put(15,30){\makebox(0,0)[cc]{t}} \put(15,60){\makebox(0,0)[cc]{\gamma t}} \put(15,90){\makebox(0,0)[cc]{k^2t}} \put(55,60){\makebox(0,0)[cc]{kt}} \end{picture} \[

\mbox{transparency gone?} with tex

\mbox{transparency gone?} with latex

\mbox{transparency gone?} with itex

preview working?

 

[bomba923]

<br /> \begin{gathered}<br /> {\text{CH}}_4 + 2{\text{O}}_2 \to {\text{CO}}_2 + 2{\text{H}}_2 {\text{O}} \hfill \\<br /> 2{\text{C}}_2 {\text{H}}_6 + 7{\text{O}}_2 \to 4{\text{CO}}_2 + 6{\text{H}}_2 {\text{O}} \hfill \\<br /> 2{\text{C}}_2 {\text{H}}_4 + 3{\text{O}}_2 \to 2{\text{CO}}_2 + 2{\text{H}}_2 {\text{O}} \hfill \\<br /> 2{\text{C}}_2 {\text{H}}_2 + 5{\text{O}}_2 \to 4{\text{CO}}_2 + 2{\text{H}}_2 {\text{O}} \hfill \\ <br /> \end{gathered}

 

[Hootenanny]

\LaTeX

-White Background ?