Spline interpolation?

Discussion created by sarahstreamline on Aug 12, 2012
Latest reply on Aug 13, 2012 by Caleb1987
In ArcGIS 9.3 there is an option to do spline interpolation off spatial analyst. I'm just starting to do interpolation...I've gotten through Kriging and IDW in ArcGIS 10, but I can't find how to do spline (regularized & tension). There are NO tutorials or step-by-step directions anywhere. I really need to do a comparison between surfaces and the two spline examples need to be included... what glaring piece of information am I missing??