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  英语翻译1.IntroductionApproximationbypolynomialsistheoldestandsimplestwaytorepresentcomplicatedfunc-tionsdefinedoverfinitedomains.ThetheoryofapproximationbypolynomialswasstudiedandsolvedbyWeierstrassin1855:itispossib

  英语翻译

  1.Introduction

  Approximationbypolynomialsistheoldestandsimplestwaytorepresentcomplicatedfunc-tionsdefinedoverfinitedomains.Thetheoryofapproximationbypolynomialswasstudied

  andsolvedbyWeierstrassin1855:itispossibletoapproximateanyarbitrarycontinuous

  functionf(x)byapolynomialandmaketheerrorlessthanagivenaccuracy²byincreasing

  thedegreeoftheapproximatingpolynomial.BesidestheproofofWeierstrass,thereare

  manyproofs,theonegivenbyLebesgueandtheproofofBernsteininwhichtheBernstein

  polynomialswereintroducedaretwoexamples.Polynomialscanberepresentedinmany

  differentbasessuchasthepower,Bernstein,Chebyshev,Hermite,andLegendrebasisforms.

  TheBernsteinpolynomialsplayanimportantroleinCAGD,becausetheyarebasesofthe

  Bernstein-B´ezierrepresentation.Sincethenatheoryofapproximationhasbeendeveloped

  andmanyapproximationmethodshavebeenintroducedandanalyzed.Themethodofleast-squaresapproximationaccompaniedbyorthogonalpolynomialsisoneoftheseapproximation

  methods.

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2020-03-13 14:46
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齐亚莉

  Introduction介绍Approximationbypolynomialsistheoldestandsimplestwaytorepresentcomplicatedfunctionsdefinedoverfinitedomains.由多项式表示的近似值是最古老和最简单的表示对做出定义的有限域...

2020-03-13 14:51:28

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