This is an open-source drag and drop equation editor written in Java. The editor lets users build up mathematical expressions in a traditional two dimensional way, and then output the results in a correctly formed syntax. This is not so easy: mathematical notation contains some ambiguities. Still, we appear to be stuck with traditional notation for the forseable future.

Once an expression is created the user can convert it into a variety of different strict linear syntaxes for mathematics, including MathML, LaTeX, Maple, Maxima or any user defined style. Although mathematics is less dependent on language than many things, the applet loads a language file which makes it possible to translate DragMath into other languages.

By developing panta rhei, we aim at providing a general framework that combines arbitrary presentation hyper-media, its narrative structure, and various discussion platforms. Panta rhei integrates narrative structures into arbitrary materials while at the same time facilitating readers to challenge, discuss, and assess the presented information on-the-?y.

soon.