In mathematics, the Klein bottle was a non-orientable surface, informally, a surface with no identifiable "inner" and "outer" sides. A Klein bottle had no boundary. For comparison, a sphere was an orientable surface with no boundary.


External linksEdit

In other languages

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.