PLEASE COMPLETE THE Matlab Script for Lagrange Polynomial Fitting BELOW

xval = [ -2 -3 -4 -5 -6 -7 -8 -9 -10]

yval = [ 19 18.8 18.7 18.3 18.2 17.6 11.7 9.9 9.1];

x=-6.5;

rae = 100;

polynomial_degree = 1;

while rae >0.005

y(polynomial_degree) = 0;

for i= _________________

xi = xval(i);

yi = yval(i);

product = yi;

for j=_________________

if i~=j

xj= xval(j)

ratio = _________________

product = _______________

end

end

y(polynomial_degree) = ________________

end

if polynomial_degree>1

rae = abs (_______________________)*100;

end

fprintf(________________________);

fprintf(________________________);

____________________________

end