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Numerical integration and list of points

• To: mathgroup at smc.vnet.net
• Subject: [mg87622] Numerical integration and list of points
• From: guerom00 <guerom00 at gmail.com>
• Date: Mon, 14 Apr 2008 06:53:33 -0400 (EDT)

Hello everyone,

I have a function which I read as a list of points. I want then to
estimate its integral. I do more or less this :

data={{x1,y1},{x2,y2},...,{xN,yN}}
f=Interpolation[data]
NIntegrate[f[x],{x,x1,xN}]

Is it the correct way ? Because Mathematica hangs without giving me an
answer although it seems a pretty straightforward thing to do...

Thanks for any suggestions.

• Follow-Ups:
  • Re: Numerical integration and list of points
    • From: Curtis Osterhoudt <cfo@lanl.gov>