“…The nonlinear current-voltage characteristic i D (v 1 ) of the Chua diode is usually a three-segmented piecewise linear function (Chua et al, 1987;Brown, 1993;Tsuneda, 2005;Rocha and Medrano-T., 2009). Other nonlinearities have been proposed for Chua diode, such as cubic polynomial functions and "cubic-like" approximations (Zhong, 1994;Eltawil and Elwakil, 1999;O'Donoghue et al, 2005;Tsuneda, 2005;Rocha and Medrano-T., 2020), sigmoid and signum functions (Brown, 1993), odd square law ax + bx|x| (Tang and Man, 1998), trigonometric functions (Tang et al, 2001), memristive current-voltage characteristics (Rocha et al, 2017), etc. In despite of its simplicity, the Chua circuit generates a great diversity of nonlinear phenomena such as fixed and equilibrium points, periodic and stranger attractors, Andronov-Hopf, saddle-node (tangent), flip (period-doubling), cusp, homoclinic, heteroclinic, and other kinds of bifurcations, multistability and hidden oscillations, antiperiodic oscillations, period-adding in sets of periodicity, metamorphoses of basins of attraction, etc (Madan, 1993;Medrano-T. et al, 2005;Algaba et al, 2012;Leonov and Kuznetsov, 2013;Medrano-T. and Rocha, 2014;Singla et al, 2015;Menacer et al, 2016;Bao et al, 2016Bao et al, , 2018Singla et al, 2018;Liu et al, 2020;Wang et al, 2021).…”