Re: Problems with interpolating

*To*: mathgroup at smc.vnet.net*Subject*: [mg13162] Re: [mg13050] Problems with interpolating*From*: Sean Ross <seanross at worldnet.att.net>*Date*: Mon, 13 Jul 1998 07:42:12 -0400*References*: <199807042044.QAA02839@smc.vnet.net.>*Sender*: owner-wri-mathgroup at wolfram.com

Luca wrote: > > Hi! I have a problem: > I need to interpolate some data. > I tried to use both "Interpolation" and "InterpolatingFunction", but I > didn't achieve my aim. I need both the interpolating equation and the > interpolating function displayed on video .What is the difference > between "Interpolating" and "Fit"? Can anyone help me, please? Thank > you, Luca Interpolation is a piecewise interpolation of polynomials, by default of order three. Because it is piecewise, there is no single equation, but a large set of equations each of which is valid over a small segment of the data range. You can see the full version by using FullForm or by saving the interpolation function object to file and then looking at it in a text editor. Fit is a single polynomial of arbitrary order that fits the data points of the entire data set.

**References**:**Problems with interpolating***From:*"Luca " <luca.ort@flashnet.it>