Transform a matrix in a special way
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Baptiste Charrier
on 10 Feb 2021
Answered: Fangjun Jiang
on 10 Feb 2021
Hi !
I have this kind of matrix :
A=[1 2 3 4 5 6 7 8 9 10]
And I would like to transform it in this way:
B=[0 1 2 3 4 ; 0 0 5 6 7 ; 0 0 0 8 9 ; 0 0 0 0 10 ; 0 0 0 0 0]
I am looking for a simple method to do it, may you help me please ?
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Walter Roberson
on 10 Feb 2021
Edited: Walter Roberson
on 10 Feb 2021
fiddle with
B = zeros(5)
B(tril(B,-1)==1) = A;
I posted exact code about two weeks ago. Needs a couple of flips.
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