Open Source Computer Aided Instruction (CAI) Software

Qucs is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Transient, Noise and Harmonic Balance analysis. Pure digital simulations are also supported.

Over 1,000,000 page views per month. Jmol/JSmol is a molecular viewer for 3D chemical structures that runs in four independent modes: an HTML5-only web application utilizing jQuery, a Java applet, a stand-alone Java program (Jmol.jar), and a "headless" server-side component (JmolData.jar). Jmol can read many file types, including PDB, CIF, SDF, MOL, PyMOL PSE files, and Spartan files, as well as output from Gaussian, GAMESS, MOPAC, VASP, CRYSTAL, CASTEP, QuantumEspresso, VMD, and many other quantum chemistry programs. Files can be transferred directly from several databases, including RCSB, EDS, NCI, PubChem, and MaterialsProject. Multiple files can be loaded and compared. A rich scripting language and a well-developed web API allow easy customization of the user interface. Features include interactive animation and linear morphing. Jmol interfaces well with JSpecView for spectroscopy, JSME for 2D->3D conversion, POV-Ray for images, and CAD programs for 3D printing (VRML export).

An open-source corpus analysis class library written in C#. GUI of Tenka Text 0.1.3 comes with Wordlister - an advanced, extremely fast graphical wordlist tool and a simple regex concordance tool. Tenka Text - the open-source answer to WordSmith Tool

Argunet is a client-server software for computer-supported argument visualization (CSAV). Reconstructed debates are visualized as argument maps and can be shared through the Argunet Server.

jCpSim (Java CardioPulmonary Simulations) is a set of Java packages for simulation of human physiology (respiration, circulation, ...) and of medical therapy (ventilation, ...). Creation of user interfaces and therapy optimization is supported.

LearnML is a XML based markup language to put learning materials in the web. Based on a simple syntax, LearnML documents can be transformed to any kind of web page (HTML, XHTML) or (printable) PDF document.

It provides a graphical animated representation of a network simulation run (e.g. for ns-2). Further, common metrics are calculated and displayed. The tool is written in Java and supplies 2 frontends (applet and stand-alone application).

The Virtual Math Teams (VMT) Project (vmt.mathforum.org) at the Math Forum enables K-12 math collaborative learning, professional development of educators, & group cognition research. VMT is now integrated with GeoGebra (http://www.geogebra.org/).

Yet another COSI Clone is an assembly computer simulation.

Provides a web-based learning platform for highschool or college courses in quantitative disciplines such as physics. Numerical and various types of MC-questions with answers depending on random parameters are supported.

yades - "yet another differential equation solver". This Java application solves ordinary differential equations (ODE) numerically and displays the results as tables, graphs, direction fields or vector fields.