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How to make a big tridiagonal matrix with matrices?

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Udvas.C
Udvas.C 2020-9-1
回答： David Hill 2020-9-1
How can I make a matrix H from two smaller matrices as shown in the attached image?

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David Hill
David Hill 2020-9-1
h=size(H0);
a=[H0,zeros(h);zeros(h),H0];
b=[zeros(h),H1;H1,zeros(h)];
H=blkdiag(a,a,a,a,a,a)+blkdiag(b,b,b,b,b,b)+blkdiag(zeros(h),b,b,b,b,b,zeros(h));

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