The only cottage cheese I know is what they sell in Costco. Not creamy.
And anyway, I'm familiar with this level of topology; I still don't see where and how you glue a square to a disk. Glueing edges of a square to build either a torus or a Klein bottle, this is a different story.
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The only cottage cheese I know is what they sell in Costco. Not creamy.
And anyway, I'm familiar with this level of topology; I still don't see where and how you glue a square to a disk. Glueing edges of a square to build either a torus or a Klein bottle, this is a different story.