In this paper, we present a real time animator for dynamical systems that can be modeled as hybrid automata i.e. standard finite automata extended with differential equations. We describe its semantic foundation and its implementation in Java and C using CVODE, a software package for solving ordinary differential equations. We show how the animator is interfaced with the UPPAAL tool to demonstrate the real time behavior of dynamical systems under the control of discrete components described as timed automata.
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