Notes

Chapter 3: The World of Simple Programs


Section 5: Substitution Systems

Implementation [of substitution systems] Properties [of substitution systems] Growth rates [in substitution systems] Fibonacci numbers Lucas numbers Generalized Fibonacci sequences Connections [of substitution systems] with digit sequences Connections [of substitution systems] with square roots Spectra of substitution systems Representation [of substitution systems] by paths Paperfolding sequences 2D representations [of substitution systems] Other examples [of substitution systems] History [of substitution systems]

From Stephen Wolfram: A New Kind of Science [citation]