Function Fitting To 3D Data

*To*: mathgroup at smc.vnet.net*Subject*: [mg53590] Function Fitting To 3D Data*From*: GlennRoberts at hbosts.com*Date*: Wed, 19 Jan 2005 01:59:56 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

hi all - this may be a trivial question so apols if is i have some 3D data z =f(x,y) where x, y, and z for the know points are; data = {{3,2,13.9},{3,5,13.4},{3,10,12.3},{12,1,15.6},{24,2,16.0},{60,5,14.1},{120,10,13.0},{240,20,11.7}} and would like to find a function to fit all data to these limits {1,1,z},{1,20,z},{240,1,z},{240,20,z} and the constraint is that is must pass exatly thou the know points - is this possible at all ? thanks , glenn