shifted triangular matrix array
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If I have matrix a=[1 2; 3 4; 5 6; 7 8] (dimension 4x2) and i want to calculate
A= [1 2 0 0 0 0 0 0;
3 4 1 2 0 0 0 0;
5 6 3 4 1 2 0 0;
7 8 5 6 3 4 1 2]
(dimension 4x8),
how can i do?
Thanks.
采纳的回答
ac=num2cell([0,0;a],2);
T=toeplitz(1:4,[1,zeros(1,3)]);
A=cell2mat(ac(T+1))
A =
1 2 0 0 0 0 0 0
3 4 1 2 0 0 0 0
5 6 3 4 1 2 0 0
7 8 5 6 3 4 1 2
3 个评论
JESUS DAVID ARIZA ROYETH
2019-12-6
Excelent!
Image Analyst
2019-12-6
Jesus, can you "Accept this answer" to give Matt credit for it? Thanks in advance.
SV
2019-12-6
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