Interpolation in the manual

[Søren Hauberg]

Hi,
  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?

Søren