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FOR Loop not giving correct answer

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Mark Sc
Mark Sc 2021-3-15
评论： David Hill 2021-3-15
Hi all,
I'd like to calculate the sum of C_ortho based on two different conditions, so I introduced 2 different for loops however, the result obtained are the same ,
In other terms, I'd like to add C(:,:,1,1)+C(:,:,2,1)... and C(:,:,1,2)+C(:,:,2,2).......
I attached my code below
clearvars
clc;
C(:,:,1,1)=[1.3621 0.0391 0.0391 0 0 0;
0.0391 .0925 0.0373 0 0 0;
.0391 .0373 .00925 0 0 0;
0 0 0 .0276 0 0;
0 0 0 0 .0431 0;
0 0 0 0 0 .0431];
C(:,:,2,1)=[.0925 .0391 0.0373 0 0 0;
0.0391 1.3621 0.0391 0 0 0;
.0373 .0391 .0925 0 0 0;
0 0 0 .0431 0 0;
0 0 0 0 .0276 0;
0 0 0 0 0 .0431];
C(:,:,1,2)=[1.3386 .0023 0 0 0 0;
0.0023 .00012 0 0 0 0;
0 0 .00012 0 0 0;
0 0 0 7 0 0;
0 0 0 0 5 0;
0 0 0 0 0 5];
C(:,:,2,2)=[10 .45 0 0 0 0;
.45 .00012 0 0 0 0;
0 0 .00012 0 0 0;
0 0 0 8 0 0;
0 0 0 0 6.1 0;
0 0 0 0 0 5];
C_ortho = zeros(6,6,2);
for i=1:2
for j=1:2
C_ortho = C_ortho+1.5*C(:,:,i,j);
end
end

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回答（1 个）

David Hill
David Hill 2021-3-15
C(:,:,1,1)+C(:,:,1,2);
C(:,:,2,1)+C(:,:,2,2);
  2 个评论
Mark Sc
Mark Sc 2021-3-15
@David Hill
Thanks David for your comment, however, I need to do it in a loop as it's a part of large code, and sometimes, i, j indices changes...
David Hill
David Hill 2021-3-15
for i=1:2
for j=1:2
C_ortho(:,:,i) = C_ortho(:,:,i)+1.5*C(:,:,i,j);
end
end

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