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