Sand dollar snowflake IFS

Written by Paul Bourke
January 2002

The IFS equations are as follows

xn+1 = a xn + b yn + e

yn+1 = c xn + d yn + f

The parameter table: 
                   set 1       set 2      set 3      set 4      set 5      set 6
             a     0.38200     0.11800    0.11800   -0.30900   -0.30900    0.38200 
             b     0.00000    -0.36330    0.36330   -0.22450    0.22450    0.00000 
             c     0.00000     0.36330   -0.36330    0.22450   -0.22450    0.00000 
             d     0.38200     0.11800    0.11800   -0.30900   -0.30900   -0.38200 
             e     0.30900     0.36330    0.51870    0.60700    0.70160    0.30900 
             f     0.57000     0.33060    0.69400    0.30900    0.53350    0.67700