Modifying a matrix such that each entry can be written in a block of four
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Ahmad Hasnain
am 6 Sep. 2021
Bearbeitet: Walter Roberson
am 6 Sep. 2021
Hi,
I have a matrix, say
A = [1 2
3 4];
I want to modify it in such a way that it can be written as
A = [1 1 2 2
1 1 2 2
3 3 4 4
3 3 4 4];
Each entry in the matrix A can be written in a block of four. How can I code it?
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Walter Roberson
am 6 Sep. 2021
Bearbeitet: Walter Roberson
am 6 Sep. 2021
A = [1 2
3 4]
B = kron(A, ones(2,2))
C = repelem(A, 2, 2)
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Yamina chbak
am 6 Sep. 2021
a=[1 2 ; 3 4];
A=zeros(2*size(a));
A(1:2,1:2)=a(1);
A(1:2,3:4)=a(3);
A(3:4,1:2)=a(2);
A(3:4,3:4)=a(4);
A
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