updated notebook example for fractals, but the kernel doesn't produce correct results

[rabarar]

I've modified the Notebook to be compatible with Julia 1.0.1 but the results aren't compatible - I'm BRAND NEW to Julia - perhaps I'm missing something - Ive attached the modified notebook for reference.

fract.ipynb.json.zip

[tkluck]

I ran into this just now as well. This is probably too late to be useful for you, but for others who find this issue: I solved it by replacing Complex64 in the old code by ComplexF32. I haven't gone back far enough in Julia's history, but my guess is that Complex64 used to be a Complex{Float32} (for 64 bits in total). With that change, I've been able to reproduce the Fractal example.