fractal

Use firefox (not chrome) to be able to right-click to save to image. I intend to fix this (so that one can save image from chrome too).

z(n+1) = z(n)**2 + A
A = + i

xrange

yrange

calc steps

Set&calc

Set canvas size. Be careful: doubling the canvas will at least make the calculation 4 times longer.
Width: Height:

Change Size

Default values are from this book, which has many beautiful visualizations of other fractal patterns.