Re: how can one use mathematica get the approximate derivative of {x,y} data points?

*To*: mathgroup at smc.vnet.net*Subject*: [mg124319] Re: how can one use mathematica get the approximate derivative of {x,y} data points?*From*: danl at wolfram.com*Date*: Tue, 17 Jan 2012 03:19:37 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

Depends on what specifically you have for input, and what specifically you require from a result. Any of interpolation, finite differencing, or Fourier methods might be appropriate for the task at hand. Some of this was discussed once here. http://forums.wolfram.com/mathgroup/archive/2003/Apr/msg00627.html https://groups.google.com/forum/?hl=en#!searchin/comp.soft-sys.math.mathematica/lichtblau$20derivative$20fourier/comp.soft-sys.math.mathematica/mBV0fAqOUmE/pA4ueiXmc5wJ Daniel Lichtblau Wolfram Research