Pantelides algorithm in mathematics is a systematic method for reducing high-index systems of differential-algebraic equations to lower index. This is accomplished by selectively adding differentiated forms of the equations already present in the system. It is possible for the algorithm to fail in some instances.
Pantelides algorithm is implemented in several significant equation-based simulation programs such as gPROMS, Modelica and EMSO.
↑Peter A. Fritzson, Principles of Object-Oriented Modeling and Simulation with Modelica 2.1, Wiley, ISBN0-471-47163-1
↑R de P. Soares and A R. Secchi, 2005, Direct initialisation and solution of high-index DAE systems, Computer Aided Chemical Engineering 20, doi:10.1016/S1570-7946(05)80148-8.
↑EMSO a free-to-use closed-source simulator/equation solver that includes implementation for the Pantelides algorithm.