- a new modeling and simulation environment for Mathematica

MathModelica is a Mathematica extension, which provides a modeling, and simulation environment for Mathematica based on the new standard of physical modeling languages called Modelica. Modelica is a new object-oriented multi-domain modeling language based on algebraic and differential equations. In this paper we present a language and an environment, MathModelica, that integrates different phases of the Modelica development lifecycle. This is achieved by using the Mathematica environment and its structured documents, "notebooks". Simulation models are represented in the form of structured documents, which integrate source code, documentation and code transformation specifications, as well as providing control over simulation and result visualization.