Interactive demo of using Newton's method in the complex plane with a cubic. Its a little slow, any ideas for improvements are welcome:
Numerous historical places in China that I visited recently were adorning their renovated cement handrails with cuboctahedra. I asked a few Chinese math professors and none of them had any idea why, and did not think they had any historical significance. I'm still curious if there is some interesting background info here.
I am a mathematician.
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