Re: [SLE] Software to extrapolate figures?

Kevin Donnelly wrote:
My son is doing physics coursework, and has a set of figures plotting voltage against resistance. He's used Qtiplot to draw a graph of the resulting curve, but does anybody know of any software which would allow this line to be extrapolated to show likely resistance for a given level of voltage - ie go beyond the actual data from the experiment to show what might happen if the experiment had been extended? It may be that Qtiplot can do this, but I can't find out how. If not, are there any other candidates out there?

It's way off topic, but least squares would be the standard method here and I think that's exactly what the physics coursework would be asking your son to do. That would be a lot more illuminating as how to go about such problems in general than putting it into a black box and watch the numbers come out.
There is software to do least squares, but this is exactly the sort of problem you should do by hand by hand.

Regards,
--
Jos van Kan registered Linux user #152704

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