"David Epstein" <David.Epstein.spam@remove.warwick.ac.uk> wrote in message
news:lkb735$ifi$1@newscl01ah.mathworks.com...
> "Steven Lord" <Steven_Lord@mathworks.com> wrote in message
> <lkb5ju$e1i$1@newscl01ah.mathworks.com>...
*snip*
> @Steve: thanks for the clarification, now very clear, and I agree that
> this convention makes good sense. So the Wikipedia article on splines has
> a different definition of the "order" of a spline. And several books I
> have out from the University Library agree with Wikipedia's convention.
I think the Wikipedia definition (on the page "Order of a polynomial") is
off by one based on my reading of the page in "A Practical Guide to Splines"
that they cite.
> But I'm happy to follow de Boor's lead. The documentation for spap2 should
> repeat the definition of "order", instead of expecting people to be
> familiar with the term from some other Mathworks page. I tried searching
> for "order of spline" in the Mathworks documentation, and drew a blank,
> after which Google/Wikipedia was the obvious route to follow.
All those are common terms, and so it would be difficult to find a good way
to highlight specifically the entry in the glossary in the documentation to
a general search so I'm not surprised your search didn't find the glossary
page.
> @Steve: can anyone at Mathworks answer my question about how to force
> spap2 to give a periodic spline? I'm sure there's a trick that achieves
> this. I need this urgently, having run into problems with installing
> Bruno's package. Should I ask for support at MathWorks?
I'm not sure how to do this or IF you can do this so yes, I do recommend
that you contact Technical Support about how to have SPAP2 return a periodic
spline. I know there are ways to get a periodic spline (CSCVN, CSAPE) but I
don't know if it's possible to do with SPAP2. At the same time you can also
ask the support staff to enter a documentation enhancement request to
clarify the use of the term 'order' in the SPAP2 documentation, perhaps by
adding that term to the glossary and making that word in the SPAP2
documentation a hyperlink to the glossary entry. [Requests like that tend to
carry a little more weight if they come directly from users.]
--
Steve Lord
slord@mathworks.com
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