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Stop extrapolation outside range

• To: mathgroup at smc.vnet.net
• Subject: [mg32680] Stop extrapolation outside range
• From: Yas <yast at optushome.com.au>
• Date: Wed, 6 Feb 2002 03:41:34 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

Hi,
How do I go about stopping Mathematica from using extrapolation when the 
specified data range falls outside the actual data range from which the 
Interpolating function was generated?

e.g.
data = {{x1,y1}.......{xn,yn}};
int = Interpolate[data];
t1=Table[int[x],{x, xi, xf, dx}]

with xn != xf.

When xn != xf, Mathematica correctly points out that the point xf lies 
outside the data range of the Interpolating function and proceeds to 
extrapolate. How do I stop it from extrapolating.

Thanks
Yas

• Follow-Ups:
  • Re: Stop extrapolation outside range
    • From: Tomas Garza <tgarza01@prodigy.net.mx>