Free tex. software for linux

bibteXML provides an XML equivalent of BibTeX.
bibteXML is a bibliography DTD for XML that expresses the content model of BibTeX, the bibliographic system for use with LaTeX.
It provides conversion tools for tagging your bibliographic data in XML, or export it to HTML or native BibTeX syntax, saving typing time.
BibTeXML is shipped with tools to translate native TeX-syntax BibTeX bibliographies to XML and translate this into any markup scheme. Hence one is able to profit from both the existing BibTeX system and bibliographies as well as the transformation and presentation facilities offered by XML.
Our goal is to maintain a strict BibTeX schema and develop (and collect!) conversion tools that will help you tag your bibliographic data in XML and save typing time, or export it to XML based bibliographic formats such as MODS, as well as HTML, DocBook, LaTeX or native BibTeX syntax.
Enhancements:
- Dublin Core Metadata support (xml & html)
- Endnote Export format output style

LON-CAPA is an Open Source Freeware Distributed Learning Content Management and Assessment System.
LON-CAPA is a full-featured, web-based course management system similar to commercial systems, see edutools.info for comparisons.
Main features:
- Content sharing and content reusability, including
- Network of shared resources from 27 participating institutions
- Shared repository of 61,000 resources including assessment questions and multimedia content
- Easy semester transition
- A large set of resources in physics/astronomy, chemistry, biology, mathematics/statistics, and geology
- Ability to add new resources to the existing content pool
- Creation and grading of randomized homework, quizzes or exams, including the ability to
- create sophisticated question types such as: click-on image, random label, random plot, or formula response
- reduce blind copying of answers by giving a different version of the problems to each student
- print randomized bubblesheet exams and quizzes
- configure the reporting of grades and feedback with a wide variety of options
- contextualize threaded homework discussions
- A development group based that sustains a twice-yearly LON-CAPA release cycle to insure rapid incorporation of instructor-requested enhancements.
- An open-source freeware system
Whats New in 2.4.2 Stable Release:
- This release correctly installs the jsMath fonts, which are used for TeX rendering.
- Symbolic math input now gets correctly compared to the instructor-prepared sample answer.
- Several issues regarding the printing, rendering, and grading of ".page" content assemblies were resolved.
- Teaching Assistants can now grade assignments that have an encrypted URL.
- The character "@" is now allowed in usernames.
- The German localization file was updated.
- Installation on CentOS and Scientific Linux is now possible.
Whats New in 2.4.99.0 Development Release:
- This release candidate supports personal response system ("clicker") registration and uploading of associated session data.
- It also offers new search functionality for users in and outside of classes, as well as optional coupling to institutional directories. User menu buttons can be switched off.
- Dynamics graphing in homework problems now supports linear/log, log/linear, and log/log plots.

pdfTeX is an extended version of TeX that can create PDF directly from TeX source files and enhance the result of TeX typesetting with the help of PDF.
When PDF output is not selected, pdfTeX produces normal DVI output, otherwise it produces PDF output that looks identical to the DVI output.
An important aspect of pdfTeX project is to investigate alternative justification algorithms, optionally making use of multiple master fonts.
Enhancements:
- This includes xpdf 3.02pl1, fixing some security problems.

Highlight is a universal converter from source code to HTML, XHTML, RTF, TeX, XSL-FO, LaTeX and XML. (X)HTML output is formatted by Cascading Style Sheets.
It supports 100 programming languages and includes 50 highlighting color themes. Its possible to easily enhance the parsing database. The converter includes some features to provide a consistent layout of the input code.
Main features:
- Coloured output in HTML, XHTML, RTF, TeX, LaTeX, XSL-FO and XML format
- Supports 100+ programming languages
- Includes 50 colour themes
- Platform independent
- Customizable and easy to use
Enhancements:
- Keywords may be outputted in lower or upper case, if syntax is not case sensitive.
- A new option to mark lines in HTML output was added.
- Artistic Style code was updated.
- Input files can be tested for various binary file formats to avoid invalid parsing attempts.
- Support for Open Object Rexx was added.

Finomaton project allows users comfortably draw and typeset finite state machines (automata).

The resulting graphs can be exported to plain MetaPost and subsequently be included in TeX and LaTeX documents for excellent typesetting quality. Contrary to many other packages, the mouse can be used to interactively move objects around.

States are magnetic to facilitate connection, and any TeX command can be embedded in the labels of states and lines.

Cadabra is a computer algebra system for the manipulation of what could loosely be called tensorial expressions.
Cadabra is aimed at, though not necessarily restricted to, theoretical high-energy physicists. Because of its target audience, the programs interface, storage system and underlying philosophy differ substantially from other computer algebra systems.
Main features:
- Usage of a TeX-like notation, which eliminates many errors in transcribing problems from paper to computer and back.
- Built-in understanding of dummy indices and dummy symbols, including their automatic relabelling when necessary. Powerful algorithms for canonicalisation of objects with index symmetries, both mono-term and multi-term.
- A typing system through properties, but freedom to dispense with this system entirely when it is not needed.
- A new way to deal with products of non-commuting objects, enabling a notation which is identical to standard physicists notation (i.e. no need for special non-commuting product operators).
- A flexible optional undo system. Interactive calculations can be undone to arbitrary level without requiring a full re-evaluation of the entire calculation.
- A simple and documented way to add new algorithms in the form of C++ modules, which directly operate on the internal expression tree.
Cadabra has been under development for some time now, but has never left my own computer. The current version is the first public release, intended to collect feedback from a wider audience. So, feel free to mail me at kasper.peeters (at) aei.mpg.de with suggestions or constructive criticism.
Enhancements:
- Many new algorithms were added.
- The GUI was improved with progress bars, font size selection, and cut and paste.
- Many bugs were fixed.
- This version compiles cleanly on all versions of OS X as well as on 64-bit platforms.

L2P creates PNG images of mathematical expressions formatted in LaTeX. While it can convert a whole LaTeX document, it is designed to easily generate images from just a fragment of LaTeX code.

Download l2p here, or read the documentation. L2P depends on other software: latex, dvips, and convert. The last one is from the ImageMagick graphics toolset.

If you already work with LaTeX on a modern Unix or Linux system, you probably already have all of that installed.

EXAMPLES:

* l2p -i $4x^2-7=cos{2 pi x}$ -o eqn4.png

Produce a PNG image, named eqn4.png, of the equation described by the LaTeX expression $4x^2 - 7 = cos{2 pi x}$.

* l2p -o big_equation.png big_hairy_equation

Produce a PNG image, called big_equation.png, from the LaTeX expression contained in the file big_hairy_equation (specifically, it contains $x=2$.) Note that this file is NOT a full LaTeX document - see the -F option for that.

* l2p -d 250 -i $
abla cdot mathbf{D} =
ho$

Produce a PNG image from the LaTeX code given with the -i argument (which happens to be one of Maxwells equations), at 250 dots per inch. Since we did not specify an output file name with the -o option, the image will be eqn.png (the default).

* l2p -p amssymb -i $mho$ -o mho.png

Produce a PNG image of the Mho symbol (an upside-down capital omega), saving the image in the file mho.png. We include the amssymb package, which defines that symbol.

OPTIONS:

-i "$latex$"
Argument is an equation/expression in (La)TeX format. In most cases, you will want to enclose the argument in quotes to protect it from shell expansion.

-b "rrggbb"
Background color. There are several ways to specify the color. See the section "COLORS", below, for details.

-d dpi
Pixel density at which the equation is rendered, in dots per inch (default 300).

An image with a DPI of 600 will have twice as many pixels in each of the x and y directions than an image with a DPI of 300. The effect is different in the normal context of printing, where a higher DPI will leave the text with the same physical size, but with a finer resolution. This is because the physical size of a pixel is not really variable; so to have double the resolution, a symbol in an image must be double the size.

-f "rrggbb"
Foreground color. There are several ways to specify the color. See the section "COLORS", below, for details.

-h Show a help summary.

-o output.png
Name of output file. Default is eqn.png

-p packagename[,packagename2[,...]]]
Use additional LaTeX/TeX packages. You can specify several, separated by commas.

-C Suppress automatic removal (cleanup) of temporary files. This will be useful if something goes wrong, or if you want to use the intermediate DVI or Postscript renditions. l2p will tell you which directory contains these files.

-F Supplied expression is a full LaTeX document, rather than just an expression fragment. Negates the -f, -b, -p and -T options.

Note: l2p currently only converts full LaTeX documents that are relatively simple: only one page in length, and with no external dependencies (such as included graphics). If you need to convert a more complex document, you can generate a DVI file with latex like normal, then convert the DVI into a series of PNG images using convert from the ImageMagick distribution. See convert(1), or < http://imagemagick.org/script/convert.php > for more information.

-T Create an image with a transparent background.

-V Show version information.