This amazing crocheted hyperbolic pseudosphere is based on work by Daina Taimiņa, a Latvian mathematician known for crocheting objects to illustrate hyperbolic space, and Margaret Wertheim, known for the Crochet Coral Reef project. You can download a free PDF of several crochet hyperbolic basics here, courtesy of The Institute For Figuring.
This crocheted hyperbolic pseudosphere was made and shared by Cheryl, thanks Cheryl!
Here are some more patterns to try:
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