Are there any online power law model curve fit calculator for rheology data?

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Till Kranz

I am not aware of online tools, but the offline gnuplot fitting facility has served me well for manually fitting curves. If I have a lot of similar curves and a reasonable expectation that fitting will work unsupervised, I am using scipy's curve_fit.

Nkosingiphile Nzama

Thanks a lot Till, I will try that as well.