Curves relative to the
isotropic divide ,
for (a) lattice and (b) angular cases. To provide a measure of smoothing,
cubic polynomials were fitted to the curves in Figure 1. To
clarify the impact of anisotropy, we show the behavior relative to the
isotropic case by subtracting from each .
This maps the isotropic curve to a horizontal line and introduces only minor
distortion. The crossover behavior for is clearly displayed.
