File:Runge's phenomenon in Lagrange polynomials.svg
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X=5,6,9,11 Y=12,13,14,16
Summary
editDescriptionRunge's phenomenon in Lagrange polynomials.svg |
English: The polynomial interpolation of samples taken from a Gaussian distribution displays significant ringing near the endpoints. |
Date | |
Source | Own work |
Author | Glosser.ca |
SVG development InfoField | ![]() This diagram was created with Mathematica. |
Source code InfoField | Mathematica codedat = {#, Exp[-#^2/2]} & /@ Range[-5, 5];
{xs, ys} = Transpose[dat];
Basis[pts_, x_] := Times @@ (x - DeleteCases[pts, #])/Times @@ (# - DeleteCases[pts, #]) & /@ pts
f = Total[ys*Basis[xs, x]];
Plot[
{
Exp[-x^2/2],
f
}, {x, -5, 5},
Epilog -> {PointSize[Large], Point[dat]},
PlotRange -> All,
PlotStyle -> Thick,
Frame -> True,
FrameStyle -> Black,
Axes -> False,
GridLines -> Automatic,
GridLinesStyle -> Directive[LightGray, Dashed],
ImageSize -> Large]
|
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current | 14:47, 29 April 2016 | ![]() | 719 × 491 (73 KB) | Rayhem (talk | contribs) | Add legend |
19:39, 23 April 2016 | ![]() | 719 × 449 (67 KB) | Rayhem (talk | contribs) | User created page with UploadWizard |
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Width | 575pt |
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Height | 393pt |