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.[1][2][3] 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.[4][5][6]
^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.