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Water Viscosity [refactored]
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Hello Jean.
How do you get β:mat(-3.466,487.393,120.455)?
Best Regards
Carlos
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Hello Jean. How do you get β:mat(-3.466,487.393,120.455)? Best Regards Carlos _____________________________ ... from the "Genfit" minimize(XY,f,φ,β) It works as well as the Mathcad "Minerr", though not so robust as the Minerr Levenberg-Marquardt option. No matter how much maths you will apply around exp(,) it will not push the fit up to the critical limit. The critical range is extracted from Thiele continued fraction. If I don't have it ready done in Smath, give me some time to reconstruct. Jean  Genfit Viscosity Water.sm (39kb) downloaded 21 time(s).
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Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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... here is Thiele "Water viscosity critical range". Thiele does not come out of clicking the fingers. The selection of support points is visual, automated from "For loop list select" Smath module. Whereas the continued fraction passes through the support points, noisy data sets [sampled data are always noisy] take lot of patience to make it work. Cheers, Jean Thiele Model Construct.sm (45kb) downloaded 30 time(s).
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