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RE: How to Integrate or Differentiate a function of data list?

• To: mathgroup at smc.vnet.net
• Subject: [mg67371] RE: [mg67344] How to Integrate or Differentiate a function of data list?
• From: "David Park" <djmp at earthlink.net>
• Date: Tue, 20 Jun 2006 03:01:24 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Simon,

Look up Interpolation (and the associated functions) in Help. Make an
InterpolatingFunction from your data and then you can differentiate and
integrate that.

David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/

From: simon yang [mailto:yanshanguke at 163.com]
To: mathgroup at smc.vnet.net


Dear Everyone,
When a function is a data list: f[x]={ {x1, f1}, {x2, f2}, {x3, f3},
... }
Which built-in function was used to Integrate or Differentiate the
function f[x], or function such as x*f[x] / (x^2 - x0^2)   ?
Thank you very much!
Simon