LaTeX Introducing LaTeX Math Typesetting

[Tom McCurdy]

ax^n hello just testing

 

[robphy]

Can you tell me how I can create a dvi file with images/pictures included ?
Thanks

In LaTeX, you can use \includegraphics
see http://www-group.slac.stanford.edu/techpubs/help/figures/latex2efigs.html
and http://www.linmpi.mpg.de/~daly/latex/grf.htm

 

[h8ter]

test again...
\sqrt[3]{27}=3

 

[Vance]

In LaTeX, you can use \includegraphics
see http://www-group.slac.stanford.edu/techpubs/help/figures/latex2efigs.html
and http://www.linmpi.mpg.de/~daly/latex/grf.htm

 

[james11]

[ tex ] a^x_n [ /tex ]

 

[chroot]

james11,

Try it without the spaces.

- Warren

 

[poolwin2001]

x_1 *<br /> x_2<br /> x_3<br />

 

[Emc2brain]

[ tex ] a^x_n [ /tex ]

 

[Emc2brain]

a^x_n[/tex ]<br /> <br /> trial 2 (w/o spaces)

 

[Emc2brain]

Eke! Oh Well..i'll Try This Later

 

[chroot]

Emc2brain,

You still have a space in your trial 2.

- Warren

 

[humanino]

That would be great if we could draw Feynman graphs ! Is it too difficult to handle ?

 

[cyber ghega]

A=x^_n
but
f(t)=alpha_n

 

[james11]

[ tex ]a^x_n[ /tex ]

 

[james11]

a^x_n

Trying without the spaces!

 

[james11]

test

P=2pieG/3*P^2*R^2

 

[james11]

test!

P= \frac{2 \p G}{3}p^2r^2

 

[james11]

Lets try again!

P= \frac{2 \p G}{3}p^2r^2[\tex]

 

[james11]

Lets try again!

P= \frac{2 \p G}{3}p^2r^2

 

[james11]

just testing!

<br /> <br /> P= \frac{2 {\p} G}{3}p^2r^2

 

[james11]

P= \frac{2\pG}{3}p^2r^2

 

[james11]

P= \frac{2{\pG}}{3}p^2r^2

 

[james11]

P= \frac{2{\p[G]}}{3}p^2r^2

P= \frac{2{\p[G]}}{3}p^2r^2

 

[james11]

P= \frac{2{\p}{G}{3}p^2r^2

 

[james11]

P= \frac{2\pieG}{3}p^2r^2

 

[james11]

P= \frac{\2pieG}{3}p^2r^2

2\pieG}{

\2pieG

 

[chroot]

james11,

Use \pi to represent \pi, rather than using "pie."

- Warren

 

[Janitor]

Testing...

The quick brown fox jumped over the lazy dog who could not get images to upload properly.

 

[brianparks]

Testing...

\Vec{v}(x,y,z)=\frac{1}{x^2+y^2+z^2}(x\Vec{i}+y\Vec{j}+z\Vec{k})

\frac{\partial v_x}{\partial x} =-\frac{2x^2}{(x^2+y^2+z^2)^2}+\frac{1}{x^2+y^2+z^2}= \frac{-2x^2}{r^4} + \frac{1}{r^2}


In the same way,

\frac{\partial v_y}{\partial y} =-\frac{2y^2}{r^4}+\frac{1}{r^2}

and

\frac{\partial v_z}{\partial z} =-\frac{2z^2}{r^4}+\frac{1}{r^2}

The divergence is

\mbox{Div}(\Vec{v})=\frac{\partial v_x}{\partial x} +\frac{\partial v_y}{\partial y} +\frac{\partial v_z}{\partial z}=

=\frac{-2x^2-2y^2-2z^2}{r^4}+\frac{3}{r^2}=\frac{-2r^2}{r^4}+\frac{3}{r^2}=\frac{1}{r^2}


It is the function
\Vec{v}(\Vec{r}) = \frac{\Vec{r}}{r^3}
whose divergence is zero everywhere except at the origin.

 

[chroot]

Test

\vec F = m \vec a

 

[Orion1]

test:
F = ma

Does anyone know of other math or physics forums similar to this forum that also uses LaTex?
Where can I purchase a comprehensive commercial LaTex CD for installing and using LaTex on a home PC?

 

[TALewis]

TeX and LaTeX are free software. I think what you probably want is MikTeX:

http://www.miktex.org/

Others, correct me if I'm wrong; I don't have any experience with TeX on Windows (I use Debian GNU/Linux).

 

[robphy]

I use MikTeX, which works well for me.

This, however, looks interesting: http://www.tug.org/texlive/

 

[Orion1]

I have MikTex v2.4 installed, and have read the documentation.

On Windows it appears to use a DOS based command format to compile various formats for various applications.

Can anyone demonstrate how to compile my first equation using Windows MikTex similar to how Physics Forums does this?

 

[JohnDubYa]

Just testing:

f(x) = \frac{ \int_{-\infty}^\infty \sin(x^2)\,dx}{\Gamma(x)}

 

[Orion1]

DVI sky...

I figured out how to compile equations into a DVI file.

I found the following command:
\includegraphics{filename}

Anyone know of a convertor program to convert DVI format to PNG graphics format?

There is a program called 'dvi2png', however I could not locate a download or determine the capabilities of this program.

There is a program located in the miktex bin file called 'dvipng.exe' that can convert .dvi to .png format, however despite the comprehensiveness of this program, failed to properly convert a miktex generated .dvi file. The resulting output .pdf file was not legible. Therefore, 'dvipng.exe' does not support miktex .dvi.

Reference:
http://css.ait.iastate.edu/WP/Latex/Thesis/HTML/Isuthesis/node47.html#math

 

[TALewis]

To use \includegraphics, you probably need to put \usepackage{graphicx} in the preamble of your LaTeX document, right after the \documentclass line.

If you're compiling your documents with the latex command, you need to convert your pictures to encapsulated Postscript (eps) before including them. If you're using the pdflatex command, I think you should be able to use JPEGs and PNGs directly.

 

[Orion1]

\include{Universe}

To use \includegraphics, you probably need to put \usepackage{graphicx} in the preamble of your LaTeX document, right after the \documentclass line.

If you're compiling your documents with the latex command, you need to convert your pictures to encapsulated Postscript (eps) before including them. If you're using the pdflatex command, I think you should be able to use JPEGs and PNGs directly.

\documentclass{}
\usepackage{graphicx}
\begin{document}
\includegraphics{filename}
\end{document}

This is absolutely correct. The MikTex DOS compiler will only accept the \usepackage{graphicx} command immediately after the \documentclass command.

I was able to include .jpg, .bmp and .png graphics directly using miktex with a .bb (bounding box) file, however the 'ebb.exe' file used to create .bb files produces incorrect file dimensions which results in the miktex equations 'eating into' the graphics box. Also, the 'ebb.exe' file does not support .bmp, however I was still able to manually create a .bb .bmp file. Note that some .bmp filters are not supported by miktex .dvi format, I suspect the same may be true for .jpg and .png also.

I was able to correct this error manually using a photoviewer that displays the correct graphics dimensions and manually editing the .bb file with the correct numbers.

'bmeps.exe' is the program that converts .jpg and .png pictures to .eps format.

'bmeps.exe' does create a .bb file with the correct graphics dimensions. However, 'bmeps.exe' does not support .bmp format.

'bmeps.exe' is able to convert .tif files into .eps format, however produces a warning of 'unknown field tag 34337 (0*8649) ignored', however still worked.

I noticed the .ps.gz and .eps examples listed in the miktex graphics folder.

I note that the .ps.gz format does appear to be impressive.

Is there any way to override the equation numbering sequencer to produce custom generated equation numbers?

Reference:
http://bmeps.sourceforge.net/faq.html#baswhich

 

[Orion1]

.dvi/.png convertor...

There is a program located in the miktex bin file called 'dvipng.exe' that can convert .dvi to .png format.

I have tested this program and has passed testing, very impressive program, works fine.

 

[TALewis]

This PDF might have a solution to overriding the default equation numbering:

http://www.ee.mu.oz.au/staff/cantoni/docs/amsldoc.pdf

Section 3.1 says that with the amsmath package (\usepackage{amsmath}), you can provide your own equation number or symbol with the \tag{label} command.

 

[gazzo]

<br /> {\lfloor}\int_{4}^{4+4} cosh (\theta + \theta + \theta){\rfloor}<br />

 

[KaneOris]

Just seeing if I am doing it right...

E = 1/2mv^2

 

[Orion1]

\begin{Big Bang}

This PDF might have a solution to overriding the default equation numbering:

http://www.ee.mu.oz.au/staff/cantoni/docs/amsldoc.pdf

Section 3.1 says that with the amsmath package (\usepackage{amsmath}), you can provide your own equation number or symbol with the \tag{label} command.

This is a solution to overriding the default equation numbering.

However, the \tag{label} command must be declared after the \begin{equation*} command within the internal equation environment. To my knowledge, the miktex compiler will not accept this command outside an equation environment. There may be other internal environments that the \tag{label} command may be accepted, this requires further research discovery.

The correct source code is:

\documentclass{article}
\usepackage{amsmath}
\begin{document}

\begin{equation*}
\tag{label}
E_1 = mc^2
\end{equation*}

\end{document}

E_1 = mc^2 \; \; \; \; \; \; \tag{label}

KaneOris, your source code is:

[!tex] E = 1/2mv^2 [!/tex]

However, this can be interpreted as a reciprocal!:
E = \frac{1}{2mv^2}

It also helps to place a subscript tag on the E for mathematical proof and tracking purposes because several different types of energies can be involved, E_k for Kinetic Energy or some other subscript tag.

Try using the fraction command \frac{numerator}{denominator}:

[!tex] E_k = \frac{mv^2}{2} [!/tex]
[!tex] E_k = \frac{1}{2}mv^2 [!/tex]

E_k = \frac{mv^2}{2}
E_k = \frac{1}{2}mv^2

Reference:
http://www.emerson.emory.edu/services/latex/latex_toc.html

 

[humanino]

Quaternions ?
\mathbb{H}
\mathbb{R}
ok, never mind...

 

[Tom McCurdy]

\frac{\pi}{{3^{i\pi}}}=\gamma

 

[lanjarote]

I can't see the tex code when I click on the examples

 

[lanjarote]

Excuse me , just for fun

<br /> \begin{align*}<br /> \nabla \times \vec E = -\frac{\partial \vec B}{\partial t}<br /> \\<br /> \nabla \times \vec H = \vec J +\frac{\partial \vec D}{\partial t}<br /> \end{align*}<br />

 

[chroot]

lanjarote,

You might need to set your popup-blocker software to allow pf to show popups.

- Warren

 

[Orion1]

Here is the complete help command list for the 'dvipng.exe' file. On Windows, some of the first commands displayed are 'cut off' by the DOS window. This is the complete list displayed by the 'dvipng.exe -help' command.

dvipng.exe help data:

dvipng.exe -help

Usage: %s [OPTION]... FILENAME[.dvi]
Options are chosen to be similar to dvips' options where possible:
-D #         Output resolution
-l #         Last page to be output
--mode s     MetaFont mode (default 'cx')
-M*          Don't make PK fonts
-o f         Output file, '%%d' is pagenumber
-O c         Image offset
-p #         First page to be output
-pp #,#..    Page list to be output
-q*          Quiet operation
-r*          Reverse order of pages
-T c         Image size (also accepts '-T bbox' and '-T tight')
-v*          Verbose operation
-x #         Override dvi magnification
-            Interactive query of options

These do not correspond to dvips options:
-bd #        Transparent border width in dots
-bdpi #      Set the base (Metafont) resolution
-bg s        Background color (TeX-style color)
--depth*     Output the image depth on stdout
--dvinum*    Use TeX page numbers in output filenames
-fg s        Foreground color (TeX-style color)
--follow*    Follow mode
--height*    Output the image height on stdout
--truecolor* Truecolor output
-Q #         Quality (T1lib and PK subsampling)
-z #         PNG compression level

# = number   f = file   s = string  * = suffix, '0' to turn off

c = comma-separated dimension pair (e.g., 3.2in,-32.1cm)

Does anyone here have a hyperlink to a comprehensive file that has descriptions for each of these commands and some sourcecode examples?

[/color]

 

[Machinus]

Sorry for the easy question, but I can't find how to make an approximation symbol (the squiggly equals sign).