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.
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James Tursa
on 9 May 2022
Is your homework assignment to code up your own Gauss elimination scheme to get the upper triangular matrix?
Answers (1)
Matt J
on 28 Oct 2012
There are commands TRIU and TRIL to convert a matrix to upper and lower triangular, if that's what you mean.
2 Comments
Matt J
on 28 Oct 2012
Edited: Matt J
on 28 Oct 2012
- 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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