- #1
tim51
- 3
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Hey,
I've been studying condition numbers for matrices. I found a past exam question that asks if the notion of condition numbers can be used for non-square matrices.
Intuitively I thought it couldn't because cond(A) = ||A||.||A^-1|| and non-square matrices have no inverse. But MATLAB will calculate it?
Why do condition numbers exist for non-square matricies and do they have any meaning at all?
Thanks.
I've been studying condition numbers for matrices. I found a past exam question that asks if the notion of condition numbers can be used for non-square matrices.
Intuitively I thought it couldn't because cond(A) = ||A||.||A^-1|| and non-square matrices have no inverse. But MATLAB will calculate it?
Why do condition numbers exist for non-square matricies and do they have any meaning at all?
Thanks.