1.4 Methods of Iterating

The Tool:

Spirograph

a geometric drawing device that produces mathematical roulette curves of the variety technically known as hypotrochoids and epitrochoids. The well-known toy version was developed by British engineer Denys Fisher and first sold in 1965.

The current toy version of the spirograph.

Street Vendors

Working Mechanism

First Drafts

Non-Spiral / Randomised Iterations

Animations

Posters

References

  • Jencks, C. and Silver, N. (2013), Adhocism: The Case for Improvisation, London. Titan Books
  • Ording, P. (2019), 99 variations on a proof. Princeton. Princeton University Press.
  • Purce, J. (1974), The Mystic Spiral: Journey of the Soul, London. Thames and Hudson