Re: Approximating the function from its plot

*To*: mathgroup at smc.vnet.net*Subject*: [mg56534] Re: Approximating the function from its plot*From*: AES <siegman at stanford.edu>*Date*: Thu, 28 Apr 2005 02:40:30 -0400 (EDT)*Organization*: Stanford University*References*: <d3o0dm$bn5$1@smc.vnet.net> <d4mv8h$3ds$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

In article <d4mv8h$3ds$1 at smc.vnet.net>, "Frank Iannarilli" <frankeye at cox.net> wrote: > I think this may be what you're looking for -- courtesy of some > years-ago poster: > That is, this trick allows you to employ Plot[] on some function to get > an adaptively sampled set of points, which you can in turn use in > FunctionInterpolation[] etc. You can play with Plot[]'s options to > increase the sampling density/sampling behavior. I may have been the person who was being responded to -- not the responder -- in this earlier post. But I also learned at some earlier point that "DownValues" is another esoteric command that one can use to do similar kinds of data recovery, though in a somewhat different way.