GNU TeXmacs is a free wysiwyw (what you see is what you want) editing platform with special features for scientists. The software aims to provide a unified and user friendly framework for editing structured documents with different types of content: text, mathematics, graphics, interactive content. TeXmacs can also be used as an interface to many external systems for computer algebra, numerical analysis, and statistics. New presentation styles can be written by the user and new features can be added to the editor using Scheme.
TextMaker is a word processor that launches quickly, needs little memory, does not require complicated setup, and has the full feature set of a modern high-end word processor. It reads and writes Microsoft Word 6/95/97/2000/XP, and Word 2003 files, and is available for Linux, Sharp Zaurus, and FreeBSD.