How can I triangular a matrix
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I have a n*n matrix. I want to change it to a triangular matrix. please help me.
1 个评论
James Tursa
2022-5-9
Is your homework assignment to code up your own Gauss elimination scheme to get the upper triangular matrix?
回答（1 个）
Matt J
2012-10-28
0 个投票
There are commands TRIU and TRIL to convert a matrix to upper and lower triangular, if that's what you mean.
2 个评论
Amir Ehsani
2012-10-28
- If you want to transform the matrix to upper triangular, then why is TRIU inappropriate?
- How will this transformation help in computing the determinant? Such a transformation would change the determinant.
- Why is n>=16 a big deal? MATLAB will do determinants pretty easily for n in the thousands
>> A=rand(3000); tic; det(A); toc
Elapsed time is 0.591271 seconds.
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2012-10-28
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