Re: Interpolation in the manual

[Søren Hauberg]

John W. Eaton skrev:
> On 28-Aug-2007, Søren Hauberg wrote:
>
> |    I've found some time to have a look at the chapter on polynomials. 
> | This chapter currently contains some functions for polynomial 
> | interpolation. More specifically
> |    * polyfit
> |    * ppval
> |    * mkpp
> |    * unmkpp
> | Should these functions rather e described in the chapter on 
> | interpolation? Also, I see that the geometry chapter contains a section 
> | called "Interpolation on Scattered Data" that describes the 'griddata*' 
> | functions. Should these be in the interpolation chapter?
>
> I think they should stay where they are and we should add a note in
> the interpolation chapter that points to the polynomial and geometry
> functions.
Something like the attached?

Index: doc/interpreter/interp.txi
===================================================================
RCS file: /cvs/octave/doc/interpreter/interp.txi,v
retrieving revision 1.7
diff -u -r1.7 interp.txi
--- doc/interpreter/interp.txi  24 Jun 2007 21:37:08 -0000      1.7
+++ doc/interpreter/interp.txi  28 Aug 2007 21:40:52 -0000
@@ -13,6 +13,10 @@
 @node One-dimensional Interpolation
 @section One-dimensional Interpolation
 
+Octave supports several methods for one-dimensional interpolation, most
+of which are described in this section.  @ref{Polynomial Interpolation}
+and @ref{Interpolation on Scattered Data} describes further methods.
+
 @DOCSTRING(interp1)
 
 There are some important differences between the various interpolation
@@ -119,7 +123,8 @@
 @section Multi-dimensional Interpolation
 
 There are three multi-dimensional interpolation function in Octave, with
-similar capabilities.
+similar capabilities.  Methods using Delaunay tessellation are described
+in @ref{Interpolation on Scattered Data}.
 
 @DOCSTRING(interp2)