LibreOffice is the power-packed free, libre and open source personal productivity suite for Windows, Macintosh and GNU/Linux, that gives you six feature-rich applications for all your document production and data processing needs: Writer, Calc, Impress, Draw, Math and Base. Support and documentation is free from our large, dedicated community of users, contributors and developers. You, too, can get involved!
Download link:
http://www.libreoffice.org/download/
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Ubuntu for you
Super-fast, easy to use and free, the Ubuntu operating system powers millions of desktops, netbooks and servers around the world. Ubuntu does everything you need it to. It’ll work with your existing PC files, printers, cameras and MP3 players. And it comes with thousands of free apps.
What is an operating system?
An operating system is what makes your computer work. The core program of any computer, it’s designed to run all your programs and manage all your hardware and software. Other examples of operating systems include Microsoft Windows, Mac OS X and Android.
How does it compare to my system?
With Ubuntu, you can do everything you can do with other operating systems. But faster. And for free!
How can it be free?
Ubuntu is, and always will be, absolutely free. Created by the best open-source experts from all over the world, Ubuntu is available in 24 languages and ready for download today.
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LyX is a document processor that encourages an approach to writing based on the structure of your documents (WYSIWYM) and not simply their appearance (WYSIWYG).
LyX combines the power and flexibility of TeX/LaTeX with the ease of use of a graphical interface. This results in world-class support for creation of mathematical content (via a fully integrated equation editor) and structured documents like academic articles, theses, and books. In addition, staples of scientific authoring such as reference list and index creation come standard. But you can also use LyX to create a letter or a novel or a theatre play or film script. A broad array of ready, well-designed document layouts are built in.
LyX is for people who want their writing to look great, right out of the box. No more endless tinkering with formatting details, “finger painting” font attributes or futzing around with page boundaries. You just write. On screen, LyX looks like any word processor; its printed output — or richly cross-referenced PDF, just as readily produced — looks like nothing else.
LyX is released under a Free Software/Open Source license, runs on Linux/Unix, Windows, and Mac OS X, and is available in several languages.
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Texmaker is a cross-platform open source LaTeX editor with interface similar to Kile. While Kile uses the KDE Platform, Texmaker remains entirely a Qt app.
Features
New projects can be started with a wizard, creating letter, article, etc. formats. Texmaker is capable of inline spell checking. As of January 2011, Texmaker cannot add new words to the dictionary (or ignore a word in spell check). For that capability, TexStudio (a Texmaker fork) can be used. The dictionary file used can be specified by the user. Like most other text editors Texmaker is equipped with a unicode editor to write LaTeX source files with syntax highlighting, undo-redo, search-replace. Some of the LaTeX tags and mathematical symbols can be entered with a mouse.
Another feature of Texmaker is creating tables, tabulars, figure environments etc. with quick wizards.
some other features:
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