How to mod the coding to get Crout LU Decomposition with 8x8 matrix .

Question

narutorao 2014-4-24

0
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https://ww2.mathworks.cn/matlabcentral/answers/127045-how-to-mod-the-coding-to-get-crout-lu-decomposition-with-8x8-matrix

回答： Jan 2014-4-25

采纳的回答： Jan

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Hi , I have tried modifying the coding below to suite my problem which is Crout LU Decomposition with 8x8 matrix .

code :

function [L, U]=LUdecompCrout(A)
       [R, C]= size(A);
       for i=1:R
           L(i,1)=A(i,1);
           U(i,i)=1;
       end
       for j=2:R
       U(1,j)=A(1,j)/L(1,1);
       end
       for i=2:R
           for j=2:i
               L(i,j)=A(i,j)-L(i,1:j-1)*U(1:j-1,j);
           end
           for j=i+1:R
               U(i,j)=(A(i,j)-L(i,1:i-1)*U(1:i-1,j))/L(i,i);
           end
       end