Julia Fractal 5 lightning

Ciro Bermudez on 20 Oct 2021
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n = 500;
[R, I] = meshgrid(linspace(-1.5, 1.5, n));
c=-0.18+1.022i;
It = zeros(n, n);
m = colormap([hot; 1 1 0]);
for ind = 1: n*n
z = R(ind) + 1i*I(ind);
it = 0;
while abs(z)<2 && it<=size(m, 1) && ~isinf(abs(z))
z = z^2 + c;
it = it + 1;
end
It(ind) = it;
end
imagesc(uint8(It-1))
axis('off')

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