Find coefficient for the best second-order polynomial that fits my data, using least-square fitting

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Daniela Conforti
Daniela Conforti 2019-1-16
评论： Torsten 2019-1-16
I want to fit my data x= [1,06e-06 1,33e-05 6,23e-05 0,00017 0,00047 0,00100] with a generic second order polynomial y= a*x^2 + b*x + c, using least-square fitting.
I need the coefficient "a" of the polynomial that allows me to have the best fitting with my data.

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Bjorn Gustavsson
Bjorn Gustavsson 2019-1-16
Try:
help polyfit
HTH

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