Question: 1 7 . 2 2 Develop an M - file function that uses polyfit and polyval for polynomial interpolation. Here is the script you can

17.22 Develop an M-file function that uses polyfit and polyval for polynomial interpolation. Here is the script you can use to test your function
clear,clc,clf,format compact x=[1248]; fx=@(x)10*exp(0.2*x); y=fx(x); yint=polyint(x,y,3) ytrue=fx(3) et=abs((ytrueyint)/ytrue)*100.

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