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T O P I C    R E V I E W
Muniversity Posted - 05/09/2007 : 1:56:24 PM
I have been using the interpolating worksheet in order to find unknown values for a recent project and it seems to be working perfectly. However, before I can publish I need to know that my values are reproducible. Since I don't know much about programming I was wondering if there is someone who knows exactly how OriginLab calculates unknown values in a scatter plot. I don't doubt that they are legitimate but I just need to know for practical reasons. I would greatly appreciate your help.
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larry_lan Posted - 05/09/2007 : 9:19:41 PM
If you use the Analysis : Interpolate/Extrapolate dialog, Origin is performing linear interpolation. That is, given a sequence of distinct pairs of data (xi, yi), where i = 0, 1, …, n-1. we are looking for the interpolated y at x by:



Larry
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