Accurate Solutions of Conservative Nonlinear Oscillators by the Enhanced Cubication Method

Table 2

Comparison of the exact and the approximate angular frequency values for a finite extensibility nonlinear oscillator.

𝐴	𝜔exact	𝜔Enhanced/𝜔exact	𝜔Belendez/𝜔exact
0.5	1.1113	0.9988	1.0000
0.75	1.3369	0.9922	1.0004
0.85	1.5412	0.9848	0.9991
0.95	2.0355	0.9723	0.9707
0.98	2.4600	0.9776	0.9098
0.985	2.5901	0.9836	0.8861
0.9953	3.0856	1.0345	0.7875