QuantLib is a cross-platform, quantitative finance C++ library for modeling, pricing, trading, and risk management in real-life. It is also wrapped as Python/Ruby/Scheme modules. Extensions for Excel, R, and Mathematica are available. Other such extensions are under consideration. QuantLib offers tools that are useful both for practical implementation and for advanced modeling. It features market conventions, yield curve models, solvers, PDEs, Monte Carlo (low-discrepancy included), exotic options, VAR, and so on.
ruby-tmpl is used for the online and offline creation of HTML, XML, and email documents. Like many other templating languages, ruby-tmpl lets you abstract the presentation from the actual content of a document. However, unlike other templating languages, ruby-tmpl also lets you perform offline processing of documents so that you can have your Web server serve static content created by templates as well as dynamic content. The templating language itself is fully XML-compliant and can safely be embedded in XML documents.
newfile generates "starting-out" files using a full featured template preprocessor. It can also generate trees of files, for example, a FreeBSD port or a project using automake and autoconf. A user can add their own template files and directories to those supplied with the package. It includes templates for making "empty" files for Ruby, make, shell, C, C++, C & C++ headers, and more.
SpeedReader helps you improve your reading speed. It is simple, interesting, challenging, and fun to play with. From a developer's point of view, it is extensible (Plugins), and as simple as possible (but no simpler). Functionality is only added if it improves the above stated goals.
Ruby Asterisk Gateway Interface (RAGI) is a framework for bridging the Ruby on Rails Web application server environment and Asterisk, the open-source PBX. RAGI eases the development of interactive automated telephony applications such as IVR, call routing, automated call center, and extended IP-PBX functionality by leveraging the productivity of the Ruby on Rails framework. RAGI simplifies the process of creating rich telephony and Web applications with a single common Web application framework, object model, and database backend.