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Needs description of what double curvature is (it was extremely difficult to find a clear definition, and when I did, it contradicted what the images on this page show)--if it can't be adequately explained, it needs to be removed.
Reiteration with Diagrid. — Регион102 ( talk) 16:23, 11 June 2013 (UTC)
This article is rated Stub-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||
|
Needs description of what double curvature is (it was extremely difficult to find a clear definition, and when I did, it contradicted what the images on this page show)--if it can't be adequately explained, it needs to be removed.
Reiteration with Diagrid. — Регион102 ( talk) 16:23, 11 June 2013 (UTC)