A dynamical system is a particle or ensemble of particles whose state varies over time and thus obeys differential equations involving time derivatives. Analytical resolution of such equations or ...

Theoretical particle physics is the development of models for describing fundamental particles and their interactions. This includes testing and refining the prevailing theory: the standard model.

Nearly all organizations rely on computer and information technology (IT) to conduct business and to operate efficiently. Computer systems analysts work with specific types of computer systems—for ...