Table 1. Development of relative error of LCM period for different integrators.

Integrator	RK4	RK-Fehlberg
Stepsize (h)	0.01	0.001
Initial Relative Error ε(x 1)	9.3×10−5	2.4×10−5
Initial Relative Error ε(x 2)	3.7×10−5	9.7×10−4
Final Relative Error ε(x 1)	0	0
Final Relative Error ε(x 2)	0	0

The initial period in time has already a small relative error. This error disappears completely over subsequent periods.