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. Author manuscript; available in PMC: 2017 Jul 15.
Published in final edited form as: Physica A. 2016 Jul 15;454:143–150. doi: 10.1016/j.physa.2016.02.012

Fig.2.

Fig.2

Construction of nonlinear waveforms with different degrees of asymmetry. (A) An example of asymmetric wave (target period (TP) = 0.1 sec) is created using two sinusoidal waves. We use Part I (from [-π/2 0]) and Part ? (from [-π -π/2]) for the one with period 2 (p2) = 0.16 sec, and Part ? in the other one with period 1 (p1) = 0.04 sec. (B) We fix TP as 0.1 sec (or target frequency (TF) = 10 Hz) and change the period ratio (p2/p1) to control the degree of asymmetry. The sawtooth wave is the extreme case of asymmetric wave.