Learn how to master Emacs, Emacs-Lisp and its many packages and keyboard shortcuts. This blog covers introductory and advanced topics about the Emacs editor.
Online LaTeX editor for collaborative editing, great for Maths or Sciences. Many resources on the site too, including templates, help-guides, and links.
This document tries to show some possible solutions for creating screen based presentations. Most of the listed solutions are LaTeX-based because I personally prefer LaTeX - and derived tools - over other documentation systems.
Gfortran is the name of the GNU Fortran project, developing a free Fortran 95/2003/2008 compiler for GCC, the GNU Compiler Collection. The gfortran development effort uses an open development environment in order to attract a larger team of developers and to ensure that gfortran can work on multiple architectures and diverse environments.
This wiki contains links to binary packages for gfortran, up-to-date status of the compiler, recently fixed bugs, etc. You can find here our "getting started" web page for new users of gfortran.
Nitro PDF's PrimoPDF is a free tool that converts all kinds of files into PDFs that you can open, edit, and manage with your usual PDF application (Nitro has a free reader, too, if you don't already have one).
Gnuplot is a portable command-line driven graphing utility for Linux, OS/2, MS Windows, OSX, VMS, and many other platforms. The source code is copyrighted but freely distributed (i.e., you don't have to pay for it). It was originally created to allow scientists and students to visualize mathematical functions and data interactively, but has grown to support many non-interactive uses such as web scripting. It is also used as a plotting engine by third-party applications like Octave. Gnuplot has been supported and under active development since 1986.
REDUCE is a system for doing scalar, vector and matrix algebra by computer, which also supports arbitrary precision numerical approximation and interfaces to gnuplot to provide graphics. It can be used interactively for simple calculations (as illustrated in the screenshot above) but also provides a full programming language, with a syntax similar to other modern programming languages.
HTML LaTeX equation editor that creates graphical equations (gif, png, swf, pdf, emf). Produces code for directly embedding equations into HTML websites, forums or blogs. Images may also be dragged into other applications like Word. Open source and XHTML compliant.