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 Author Comment/Response Bill Simpson 11/21/12 00:10am In Response To 'Re: Lagrange polynomial'---------Somehow in the scrape-n-paste a "{" was lost. Trying one more time, and put parts of this on separate lines to perhaps make it easier to understand: In[1]:= p[points_]:=Sum[ Product[If[i==j,1,x-points[[i,1]]],{i,1,Length[points]}] / Product[If[i==j,1,points[[i,1]]-points[[j,1]]],{i,1,Length[points]}] * points[[j,2] ], {j,1,Length[points]}]; poly=p[{{1,1},{2,4},{3,2}}] Out[2]= ((-3+x)*(-2+x))/2 - 4*(-3+x)*(-1+x) + (-2+x)*(-1+x) URL: ,

 Subject (listing for 'Lagrange polynomial') Author Date Posted Lagrange polynomial Mark Dymek 11/19/12 2:07pm Re: Lagrange polynomial Bill Simpson 11/20/12 7:03pm Re: Re: Lagrange polynomial Bill Simpson 11/21/12 00:10am Re: Lagrange polynomial [requested rewording] Mark Dymek 11/22/12 1:58pm
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