## Ikeda attractor
Written by Paul Bourke
The Ikeda attractor is based upon the following complex valued series with the 4 parameters a, b, k and p. _{n+1} = a + b z_{n} exp[ i k -
i p / (1 + | z_{n}^{2} | ) ]a = 0.85, b = 0.9, k = 0.4, p = 7.7
Contribution by Tim Meehan |