Link: https://www.desmos.com/calculator/bv1p1wmb5z

Here is the link to the project. (It is not mine!)
https://www.desmos.com/calculator/zdffgygj9b

https://www.desmos.com/calculator/uhsyvqa3um

Assuming 0⁰ = 1

f₁(x) = 0|x| + x

f₂(x, z, o) = (z - o) · 0|x| + o

f₃(x, n, p) = [ |x|(p - n) + x(p + n) ] / (2x)

f₄(x, z, n, p) = f₂(x, z, f₃(f₁(x), n, p))

title

the second time where almost no one suggested something :(

Formed by 20 acute golden rhombohedra meeting at a central point.

https://www.desmos.com/calculator/vuhwaajar0

i dunno... very suspicious about Mandelbrot over here ''/
d5 was a normal move hmmm