Re: Interpolation of a tabulated function

*To*: mathgroup at smc.vnet.net*Subject*: [mg115562] Re: Interpolation of a tabulated function*From*: "Ingolf Dahl" <ingolf.dahl at telia.com>*Date*: Sat, 15 Jan 2011 04:42:26 -0500 (EST)

If I understand you right, your control points have coordinates xi and the function values are yi = intFucn[xi] in the control points. Then Interpolation should work, even for unequal intervals. There is an example in the Help for Interpolation, that you might check: Interpolation[{{0, 0}, {0.1, .3}, {0.5, .6}, {1, -.2}, {2, 3}}] Best regards Ingolf Dahl Sweden > -----Original Message----- > From: girl17 [mailto:irexxy at gmail.com] > Sent: den 14 januari 2011 12:17 > To: mathgroup at smc.vnet.net > Subject: [mg115538] Interpolation of a tabulated function > > So, I have a list for tabulated function like that: > {{x1,y1},{x2,y2},...,{xn,yn}}, where x(i+1)-xi are not equal for all i. > I want to get an interpolated function for that array and to use this function in this way: > intFucn[x], where x1<=x<=xn. > I tried to use ListInterpolation[], but it works only for 1D lists, i.e. in case if x(i+1)-xi are > equal for all i. > Is there any solution for this problem?