Shape parameters (ellipticity and prolaticity) of a set of particles uniformly distributed in a sphere. These two parameters have to be equal to 0. In practice, the ellipticity decreases with the number of particles, the prolaticity tends toward 0 when the number of particles tends toward infinity. The axis ratios (b/a and c/a) tend toward 1 when the number of particles increases. The accuracy of the ellipticity measurement is approximately 10⁻², which is sufficient to correct the ellipticity measurement observed in the lower-right panel of figures 14 and 16 to reach the value corresponding to cosmological universality. The accuracy of the measurement of the c/a ratio is sufficient to explain the discrepancy observed in the lower-left panel of figures 14 and 16 and thus again reestablish cosmological universality.