(color online) Numerical results of constructed Eq. (11). Four figures use parameters reconstructed with four data sets collected in experiments at T = 10.42 s (a), 5.38 s (b), 3.27 s (c), and 2.60 s (d), respectively. T step for producing numerical results is the same as that of the experiment, Δ t = 0.05 s . A number of characteristic features such as distributions of periodic regions, chaotic domains and their turning points of the four reconstructed systems are rather similar to each other and all of them show essential features of the experimental results of Fig. 3.