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Linear dynamical systems can be solved exactly, in contrast to most nonlinear ones. Occasionally, a nonlinear system can be solved exactly by a change of variables to a linear system. Moreover, the solutions of (almost) any nonlinear system can be well-approximated by an equivalent linear system near its fixed points. Hence, understanding ...
Supports system dynamics, agent based and discrete event modeling, allows making hybrid models. ASCEND: Free, GNU General Public License (GPL) C: 2012 For solving small to very large mathematical models, systems of non-linear equations, linear and nonlinear optimisation problems, dynamic systems expressed as differential-algebraic equations.
System dynamics is an aspect of systems theory as a method to understand the dynamic behavior of complex systems. The basis of the method is the recognition that the structure of any system, the many circular, interlocking, sometimes time-delayed relationships among its components, is often just as important in determining its behavior as the ...
Software and Systems Modeling (SoSyM) is a peer-reviewed scientific journal covering the development and application of software and systems modeling languages and techniques, including modeling foundations, semantics, analysis and synthesis techniques, model transformations, language definition and language engineering issues.
According to the 2021 Journal Citation Reports, the Journal of Systems and Software has an impact factor of 3.514. [2] According to Google Scholar, the journal has an h5-index of 61, which ranks third among international publication venues in software systems, after ICSE and IEEE Transactions on Software Engineering.
Observability is a measure of how well internal states of a system can be inferred from knowledge of its external outputs. In control theory, the observability and controllability of a linear system are mathematical duals. The concept of observability was introduced by the Hungarian-American engineer Rudolf E. Kálmán for linear dynamic systems.
A simulation software platform to model and analyze virtually any manufacturing, material handling and logistics challenge. July 18, 2018 [3] ExtendSim: Imagine That Inc. A general purpose, multi-method simulation and analysis tool that also includes discrete rate and reliability block diagramming components. March 7, 2023 [4] DELMIA: Dassault ...
LQG control applies to both linear time-invariant systems as well as linear time-varying systems, and constitutes a linear dynamic feedback control law that is easily computed and implemented: the LQG controller itself is a dynamic system like the system it controls. Both systems have the same state dimension.