1.txt

用有理多项式做Chebyshev逼近的一种直接方法的matlab程序

f=log(x)  x:[1,2]
g=1

x =

  Columns 1 through 4 

   1.00000000000000   1.04951556604879   1.18825509907063   1.38873953302184

  Columns 5 through 8 

   1.61126046697816   1.81174490092937   1.95048443395121   2.00000000000000


run =

     1


lb =

    4.936121335519094e-011


lb =

    9.769593740668256e-011


delta =

  1.0e-010 *

  Columns 1 through 4 

  -0.97695941614351   0.97695934675457  -0.97695962431033   0.97695962431033

  Columns 5 through 6 

  -0.97695962431033   0.97695962431033


run =

     1


lb =

    9.769593740668256e-011


E =

  Columns 1 through 4 

   0.00000000009770   0.97603028099718   2.12589052212388   3.49573743166585

  Columns 5 through 7 

   1.16619570627940   7.14658423044367   0.81590708589837


x =

  Columns 1 through 4 

   1.00000000000000   1.04951556604879   1.18825509907063   1.38873953302184

  Columns 5 through 8 

   1.61126046697816   1.81174490092937   1.95048443395121   2.00000000000000