Novel Analytical and Numerical Approximations to the Forced Damped Parametric Driven Pendulum Oscillator: Chebyshev Collocation Method
Figure 3
The comparison between the semi-analytical solution (analytical approximation) (16) and the numerical approximations using the Chebyshev collocation method and RK numerical method as well as the MATHEMATICA command Fit to i.v.p. (3) for case (1):.