doolittle decom

Upload: dhruvam-pandya

Post on 06-Jul-2018

212 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/16/2019 Doolittle Decom

    1/3

    Date:

    Exp:

    LU DOOLITTLE DECOMPOSITION

    PROGRAMMING CODE:

    clear;

    clc;

    A=input(enter t!e "atrix#;

    $" n%=&i'e(A#;

    L='er&(&i'e(A##;

    U='er&(&i'e(A##;

    U()*:#=A()*:#;

    L(:*)#=A(:*)#+U()*)#;

    ,r -=.:",r i=.:"

      ,r /=i:"

      U(i*/#=A(i*/#01t(L(i*):i0)#*U():i0)*/##;

      en1

      L(i*-#=(A(i*-#01t(L(i*):-0)#*U():-0)*-###+U(-*-#;

    en1

    en1

    ,print,(l2er trian3luar "atrix#;

    L

    ,print,(upper trian3ular "atrix#;U

  • 8/16/2019 Doolittle Decom

    2/3

    OUTPUT:

    1. enter the matrix[4 12 -16;12 37 -43;-16 -43 98]

    lower trianl!ar matrix

    " #

      1 $ $

      3 1 $

      -4 % 1

    !&&er trian!lar matrix

    U #

      4 12 -16

      $ 1 %

      $ $ 9

    2. enter the matrix[1 2 3 4 %;2 6 7 8 9;3 7 1$ 11 12;4 8 11 1314;% 9 12 14 1%]

    lower trianl!ar matrix

    " #

      1.$$$$ $ $ $ $

      2.$$$$ 1.$$$$ $ $ $

      3.$$$$ $.%$$$ 1.$$$$ $ $

      4.$$$$ $ -2.$$$$ 1.$$$$ $

      %.$$$$ -$.%$$$ -%.$$$$ 2.2$$$ 1.$$$$

  • 8/16/2019 Doolittle Decom

    3/3

    !&&er trian!lar matrix

    U #

      1.$$$$ 2.$$$$ 3.$$$$ 4.$$$$ %.$$$$

      $ 2.$$$$ 1.$$$$ $ -1.$$$$

      $ $ $.%$$$ -1.$$$$ -2.%$$$

      $ $ $ -%.$$$$ -11.$$$$

      $ $ $ $ 1.2$$$