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PyKoopman is a Python package for the data-driven approximation of the Koopman operator associated with a dynamical systems.The Koopman operator is a principled linear embedding of nonlinear dynamics and facilitates the prediction, estimation, and control of strongly nonlinear dynamics using linear systems theory.In particular, PyKoopman provides tools for data-driven system identification for unforced and actuated systems that build on the equation-free dynamic mode decomposition (DMD) (Schmid, 2010) and its variants (Steven L.
Pan et al. (Sun,) studied this question.