This is JtoLaTeX, a compiler which writes LaTeX files using J evaluation for the hard bits.

This project aims to be extensible, and to interface well with J. A natural corollary of this behavior will be a particularly powerful formatting language.

The script jlatex can be run on a document, and will compile it to a .tex document and then run pdflatex on that.

To install,

$ cd ~user/
$ git clone git://github.com/mlochbaum/JtoLaTeX.git
# ln -s JtoLaTeX/jlatex /usr/bin/jlatex

where ~user is given by

   jpath '~user'

in J.

If you want to install in a different location, you must change the line

FILEPATH =: '~user/JtoLaTeX/'

at the top of jlatex to use the appropriate path.

Documents are written in LaTeX, except that a section enclosed in an escape like \L() (L could be any name) will be executed according to the verb L_pjdoc_ in jdoc.ijs. In particular, L converts a J expression into an "equivalent" LaTeX expression, sending '2+^~<:5' to '2+(5-1)^{5-1}', for example.

Addons (in the extra/ folder) allow you to create matrices, tables, plots, and more cleanly from J.

See doc/introduction/document.pdf for information about the built-in features of JtoLaTeX. doc/core/document.pdf describes the additional functionality which is automatically loaded, and the other documentation provides information about available addons.