On the problem of graph expansion
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For a cylindrical shape with absolutely impossible dimensions, how many ways can it be unrolled? If the upper surface is oblong and the lower surface is circular, how should it be unfolded?
There is a shape that works for everything, whether it’s a square, a circle, or an ellipse. But I don’t know how to upload pictures. Hehe, it was something my master taught me when I was learning riveting
Reply to the person in floor 2: you can either upload the image as an attachment or insert it. By replying to the post, you can attach images.