OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.


Help: OASIS Mailing Lists Help | MarkMail Help

office-comment message

[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]

Subject: improvements for interpolation in charts

Hi all,

I have noticed, that you are discussing improvements for interpolations in charts. Currently both kind of interpolations are parametric. That gives nice curves, but for some functions the result can be better with non-parametric methods. So I want to see non-parametric interpolation methods in addition. For example my textbook "Engeln-Müllges, Gisela: Numerik-Algorithmen" suggests the "Akima Subsplines" for not smooth functions. It should be possible to use such interpolations too.

If the already made suggestion "fixed derivatives at both ends" includes "non-parametric" too, I would second that kind.

I do not find the term "parabolic limits" besides in the description of the application "goffice". What does it mean? Is it the same as "parabolically terminated"? And what does "cubic limits" mean? [I'm no professional mathematician, but will implement those interpolations. So please excuse me, if my questions are stupid.]

Kind regards

[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]