Given an nxn matrix A, how do I produce a lower triangular matrix with ones on the diagonal?

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Emily Gallagher
Emily Gallagher on 23 Sep 2019
Answered: Fangjun Jiang on 23 Sep 2019
Given an nxn matrix A, how do I produce a lower triangular matrix with ones on the diagonal?
I tried
A = rand(n,n);
L = tril(A,1) + diag(ones(1, size(A,1))) ;
but it isn't working.

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Answers (1)

Fangjun Jiang
Fangjun Jiang on 23 Sep 2019
tril(A,-1)+eye(n)

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