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

1 次查看（过去 30 天）
Emily Gallagher
Emily Gallagher 2019-9-23
回答： Fangjun Jiang 2019-9-23
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.

请先登录，再回答此问题。

回答（1 个）

Fangjun Jiang
Fangjun Jiang 2019-9-23
tril(A,-1)+eye(n)

类别

在 Help Center 和 File Exchange 中查找有关 Operating on Diagonal Matrices 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by