Interpolation in the manual

[John W. Eaton]

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.

jwe