13 Oct
2007
13 Oct
'07
4:01 a.m.
Thanks Bill for the example of the mutilated pyramid, (lots of concavities). Question; You say C^2 is not possible (because of zero curvature condition?). See the pictures of sofa cushions in the wikipedia article. They look pretty C^2 to me. What are they? http://en.wikipedia.org/wiki/Paper_bag_problem At 05:37 PM 10/12/2007, you wrote:
RKG said: As a very small boy, I described the state of my fingers after they'd been in the bath a long time, as being ``snibbly''.
Me: ``pruned'' is the usual term, of course! Neil