interpolation



ok thanks

I have another question
if you see this: http://www.youtube.com/watch?v=EypwejBhN34
starting from:
p:[[1,8.38],[2,9.82],[3,10.33],[4,12.14],[5,13.25]]

he gets a lot of functions like:
a) 	y=1.206*x+7.166 
b) 	y=0.04571*x^2+0.9317*x+7.486
c)	y=0.01917*x^3-0.1268*x^2+1.384*x+7.164
d)	y=-0.1768*x^4+2.134*x^3-8.864*x^2+.....
and others

In maxima I know how to obtain a) and something like d)
what about for example if I'd like to get get something like b) or c)  ?


thanks




> 
> load(interpol)$
> ratinterpol(p,2);
> x^2-3*x-10
> 
> Ray
> 
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