![Implementation [of 2D substitution systems]](/nks/img/thumbnails/notes-5-4--implementation-of-2d-substitution-systems--textonly.png "Implementation [of 2D substitution systems]")
![Connection [of 2D substitution systems] with digit sequences](/nks/img/thumbnails/notes-5-4--connection-of-2d-substitution-systems-with-digit-sequences--textonly.png "Connection [of 2D substitution systems] with digit sequences")
![[2D substitution systems with] non-white backgrounds](/nks/img/thumbnails/notes-5-4--2d-substitution-systems-with-non-white-backgrounds--textonly.png "[2D substitution systems with] non-white backgrounds")
![Higher-dimensional generalizations [of substitution systems]](/nks/img/thumbnails/notes-5-4--higher-dimensional-generalizations-of-substitution-systems--textonly.png "Higher-dimensional generalizations [of substitution systems]")
![[Substitution systems based on] other shapes](/nks/img/thumbnails/notes-5-4--substitution-systems-based-on-other-shapes--textonly.png "[Substitution systems based on] other shapes")
![Implementation [of geometric substitution systems]](/nks/img/thumbnails/notes-5-4--implementation-of-geometric-substitution-systems--textonly.png "Implementation [of geometric substitution systems]")
![Connection [of geometric substitution systems] with digit sequences](/nks/img/thumbnails/notes-5-4--connection-of-geometric-substitution-systems-with-digit-sequences--textonly.png "Connection [of geometric substitution systems] with digit sequences")
![Visualization [of geometric substitution systems]](/nks/img/thumbnails/notes-5-4--visualization-of-geometric-substitution-systems--textonly.png "Visualization [of geometric substitution systems]")
![Neighbor-dependent [2D] substitution systems](/nks/img/thumbnails/notes-5-4--neighbor-dependent-2d-substitution-systems--textonly.png "Neighbor-dependent [2D] substitution systems")
Implementation [of 2D substitution systems]
Connection [of 2D substitution systems] with digit sequences
[2D substitution systems with] non-white backgrounds
Higher-dimensional generalizations [of substitution systems]
[Substitution systems based on] other shapes
Implementation [of geometric substitution systems]
Connection [of geometric substitution systems] with digit sequences
Visualization [of geometric substitution systems]