Re: Interpolation[] problem

*To*: mathgroup at smc.vnet.net*Subject*: [mg18529] Re: Interpolation[] problem*From*: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>*Date*: Thu, 8 Jul 1999 22:33:00 -0400*Organization*: Universitaet Leipzig*References*: <7m14um$pls@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Hi, Matheamtica can handel the data on a irregualar but rectangular spaced grid, here is an example make some irregular spaced data data = Table[N[{x^2, y, Sin[x^2*y]}], {x, 0, Pi, Pi/32}, {y, 0, Pi, Pi/32}]; Here i mus flatten the matrix of 3d points to a list of 3d points ip = Interpolation[Flatten[data, 1]][x, y] Now lets look if the points are correct Show[Graphics3D[Map[Point, data, {2}]]]; and try the interpolation Plot3D[Evaluate[ip], {x, 0, \[Pi]^2}, {y, 0, \[Pi]}] Send me the data file to kuska at informatik.uni-leipzig.de because the moderator has removed it. Hope that helps Jens Attico Nicola wrote: > > hi all, > i've an incomprehensible problem with > Interpolation[]. > I need to interpolate a two dimensional > function z(x,y) and i've in a file > the values of the functions in different > points in the form: > > x_i y_i z_i > > (ive copied my file in attchmnt)