Re: Calculating with imprecise values

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Al Getz wrote:

> I've used so called 'sensitivity' analysis in the past to measure changes
> in functions with respect to a given variable and this helped understand
> things better sometimes especially when human error is involved.
> 
> For example....
> 
> for the equation with some function F:
>   y=F(a,b,c)
> 
> the sensitivity with change of parameter 'a' might be 100 times as great
> as with parameter 'b', and perhaps the sensitivity with respect to 'c'
> might be 1000 times lower than with 'a', meaning y hardly changes
> with 'b' or 'c' but changes quite a bit with parameter 'a'.  Thus,
> the error in measurement in 'b' or 'c' doesnt matter as much as with
> the error in 'a'.  This would mean great care should be used in measuring
> 'a' while with 'b' or 'c' you might get away with estimating from other
> parameters or whatever.

Interesting!
Do you have a link at hand that explains sensitivity analysis more in
detail? smile

Regards,
   Juergen

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