A new approach for modelling the damped Helmholtz oscillator: applications to plasma physics and electronic circuits

S A El-Tantawy,Alvaro H Salas,M R Alharthi

Figure 3. A comparison between the semi-analytical solution (36) (dashed curve) and (a) the RK4 numerical solution (dotted curve), (b) the FDM numerical solution (dotted curve), and (c) the HPM numerical solution (dotted curve). Here, α = 3, β = −0.25, γ = 0.2, q0 = 1 , and ${\dot{q}}_{0}=0.5$.