above $N_{\rm max}=10$. The highest curve corresponds to $N_{\rm max} = 90$ and successively lower curves are obtained with $N_{\rm max}$ decreased by 10 units until the $N_{\rm max}=30$ curve and then by 2 units for each lower $N_{\rm max}$ curve. The rms radius converges monotonically from below for most of the $\hbar\Omega$ range shown. More importantly, the rms radius shows the anticipated convergence to a flat line accompanied by an increasing density of lines with increasing $N_{\rm max}$. These are the signals of convergence that we anticipate based on experience in limited basis spaces and on general theoretical physics grounds.

![Calculated and predicted gs point proton rms radius of $^6\mathrm{Li}$ as a function of $\hbar\Omega$ at selected $N_{\rm max}$ values. []{data-label="fig:Li6_gs_radius"}](Li6_gs_radius_old_better-eps-converted-to.pdf){width="\linewidth"}

The NCSM calculated values and the corresponding prediction values of the gs point proton rms radius of $^6\mathrm{Li}$ are presented in Figure \[fig:Li6\_gs\_radius\_cp\] for $N_{\rm max} = 12, 14, 16,$ and $18$. The dashed curves link the NCSM calculation results using the Daejeon16 NN interaction and the solid curves connect the ANN prediction results. As seen in this figure, the ANN predictions are in good agreement with the NCSM calculations, showing the efficacy of the ANN method.

![Comparison 