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


Hi,

a function is a function, is a function and never a data list.
If you have a data list you can construct an InterpolatingFunction[]
and the polynomials are used to integrate or derivative the function.

Regards
   Jens

simon yang wrote:
> 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
> 


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