Have a look at v2.3
And I think you may enjoy the new hypercomplex variables. Quaternion example included. ;-)
I will check that, thanks. The demo with Julia set is impressive!
BTW, I think you get a bit better view of the Mandelbrot set modifying one line, replace:
230 tt = it / mx
by:
230 tt = sqr(it)/sqr(mx)
Nice one! :-)