sinh() fractal

Written by Paul Bourke
Inspired by Whittaker Courtney
July 2019

The following fractal is formed by considering the behaviour of the following complex series.

z_n+1 = abs(sinh⁴(z_n)) + c

where the abs() function is applied to the real and imaginary components independently, for example

abs(a+bi) = abs(a) + abs(b)i