Object-oriented equation-based modelling and optimisation software
Component, CA, and CCA models; superdense time, DB repo, testing, etc.
FEATool Multiphysics is an easy-to-use FEA and CFD Simulation Toolbox
Frevo is probably the simplest tool for evolutionary design
Parallel coupled multiphysics simulation application
A toolset to automate STOP analysis with Zemax OpticStudio
A multi-modeling and simulation environment to study complex systems
C++ class to generate biologically plausible genetic codes
Power flow library in C++
eANN is an implementation of several kind of neural networks.
Analyze and visualize coupled residues and their networks in proteins
A simple hydrodynamic code less than 700 lines long!