DruTeX is a powerful LaTeX module for Drupal. It can be used to display mathematics written in LaTeX as images inline with other text, or separately as a downloadable pdf.
Features include:
rendering of maths or arbitrary LaTeX via latex + ImageMagic / dvipng
support of classical LaTeX-math environments like $x^2$, \[ x^2 \]
some plain latex2html and html2latex facilities (no external program needed)
pdf generation of nodes (with LaTeX)
highly-configurable input formats
security-enhanced modes (to allow even anonymous users to write latex)
Drupal / LaTeX UTF-8 (utf8) support
Able to remotely render LaTeX on a foreign server if your primary server doesn't support LaTeX
This module logs system events to a file, as a tiny and lightweight replacement option for watchdog (dblog for Drupal 6) module. It is intended for using in situations when the site is highly loaded and even disabling DB logging activity can slightly help, or you want a dedicated log file for events on site, different from a system log.
Among the Rawlog features:
Log file path/name changing. You may specify a path and name for your log file. If file not exists, it will be created.
Severity level filtering. If you having lots of activity on site, you can record only errors not notices etc.
Tags. If you set the severity level high to record errors only, but you want to keep track of operations like delete, you may add a "delete" tag so events having it will be logged disregarding of severity. Negative Tags were added as discussed in #814148: Negative Tags.
File format. You may change the log file format to show full events info on multiple lines or stretch these to one line without event field titles for saving disk space and quicker review.
Logs rotation #742380: Rawlog options . This sets how often the log file will change - hourly, daily, weekly, monthly or never. This may be useful if you need to review activity on site per the particular day or a week.