| spiral | link | |
|---|---|---|
| Lituus | The lituus | |
| hyperbolic spiral | The hyperbolic spiral | |
| Archimedes’s spiral | The Archimedean spiral | |
| Fermat’s spiral | Fermat’s spiral |
- The logarithmic spiral:
- The Cornu spiral or clothoid
- The Fibonacci spiral and golden spiral
- The Spiral of Theodorus: an approximation of the Archimedean spiral composed of contiguous right triangles
- The involute of a circle, used twice on each tooth of almost every modern gear