Cross sections of length 300 h⁻¹ Mpc of the density contrast δ(x) = D(x)−1 of the model L512 along the x-spatial coordinate at the same z-coordinate as shown in Fig. 14. The blue line shows the density field of the model L512.00 at a redshift of z = 30. The black line shows the density field of the full model L512.00 at the present epoch, and the red line shows the same but for the biased model L512.10.