Evolution over time for cluster C without rotation, with N = 10³ stars, where each star has a radius of R = 100 R_⊙. Top panel: Lagrangian coordinate in the vertical direction for 90%, 50%, and 10% of the enclosed mass as a function of time. Middle panel: Lagrangian radii for the 90%, 50%, and 10% mass intervals as a function of time. Bottom panel: relative cumulative energy error (ϵ) (Eq. (13)) is given as a check of the energy conservation as a function of time.