Source-highlight-qt is a library for performing syntax highlighting in Qt documents by relying on the GNU Source-Highlight library. It provides an implementation of the Qt abstract class QSyntaxHighlighter class, and it deals both with Qt3 and Qt4, although you will need to build a separate version of the library for the two different Qt framework versions. The Qt3 version has fewer features and it is there only for old Qt applications. Furthermore, the QSyntaxHighlighter class in Qt3 has some design problems which make it quite inefficient to use.
Miramath is an Open Source project inspired by the MathCad mathematical application. The main user interface consists of a page into which mathematical expressions can be entered or edited and then evaluated. It features a Wysiwyg equation editor, automatic evaluation of equations, integrated plotting, symbolic algebra using Sympy, and numerical computations using Scipy.
GPlates offers a novel combination of interactive plate-tectonic reconstructions, geographic information system (GIS) functionality, and raster data visualization. GPlates enables both the visualization and the manipulation of plate-tectonic reconstructions and associated geological, geophysical, and paleo-geographic data through geological time.
SlideShoQ is PDF presentation software that supports two-screen presentations: One screen shows the current slide fullscreen, i.e. what you want to show on the projector for the audience; the second screen is your computer, which shows the current, next, and previous slides, current time, and other useful information.
BookONO eBook Manager is an e-book manager and convertor designed as a compliment to Calibre. It is not a rewrite of Calibre, but instead an alternative product which makes some different design decisions. It uses Calibre to do a lot of the heavy lifting, so despite being an independent application, it is considered complimentary to Calibre.