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Using matlab to finish it 5.Polyfit Thepolyfitcommandattemptstofitapolynomial(anxn+ an-1xn-1+ +a=y) toadataset. Thefollowingisalist ofthepolyfitcommandsandresults(eachforadifferentdataset), writetheequationintheformofy= f(x) representedbytheoutput of the polyfit command: (a) Coeff=polyfit(x,y,3) Coeff= -2 1 0

Using matlab to finish it

5.Polyfit

Thepolyfitcommandattemptstofitapolynomial(anxn+ an-1xn-1+ +a=y) toadataset. Thefollowingisalist

ofthepolyfitcommandsandresults(eachforadifferentdataset), writetheequationintheformofy= f(x)

representedbytheoutput of the polyfit command:

(a)

Coeff=polyfit(x,y,3)

Coeff= -2 1 0 3

Equation:

(b)

Coeff=polyfit(x,log(y),1)

Coeff= 4 1

Equation

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