A tridimensional intertwining made of the Menger Sponge -iteration 5- inside a sphere [Un entrelacs tridimensionnel fait de l'éponge de Menger -itération 5- à l'intérieur d'une sphère].
This picture is defined as:
PR[x,y,z] = = = PA[PX[x,y,z],PY[x,y,z],PZ[x,y,z]]
using the four following tridimensional fields:
PA[x,y,z] = =
PX[x,y,z] =
PY[x,y,z] =
PZ[x,y,z] =
The three tridimensional fields {PX,PY,PZ} are computed by means of the pseudo-projections of a torus and tridimensional rotations.