I have to do a LDL[tex]^{T}[/tex] transform of a symmetrical matrix:(adsbygoogle = window.adsbygoogle || []).push({});

[2 -1 0]

[-1 2 -1]

[0 -1 2]

And, I'm just wondering if I have to do a row exchange, or something. I can't remember if the L matrix has to have the form

[x 0 0]

[x x 0]

[x x x]

where the x's are nonzero numbers.

Basically, I'm asking if that 0 in the lower left hand corner is all right, and if I only need to eliminate the -1 at positions 2,3 and 1,2

Thank you.

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# Homework Help: Simple Linear Algebra question

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