User:WillemienH/Draft Pseudosphere new
From Wikipedia, the free encyclopedia
New draft of great enlargement of Pseudosphere
start with version 12/03/2016 new references
- virtual math museum - wolfram demo project - stackechange questions
- riemans hab
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In geometry, the term pseudosphere is used to describe various surfaces with constant negative Gaussian curvature. Depending on context, it can refer to either a theoretical surface of constant negative curvature, to a tractricoid, or to a hyperboloid.