Binary numbers

[David C. Ullrich]

In article <95ru6u$lfg$1 at nnrp1.deja.com>,
  sampe99 at my-deja.com wrote:
[...]
>
> First, thanks to you all that presented excellent solutions to my
> problem.
>
> And to Ken. The basic problem is to make a transition probability
> matrix (over one year) apply to a smaller time frame (like a week). To
> do this I take the n:th root of the matrix which produces n different
> solutions for each eigenvalue. I found python returns only one answer
> to x**(1/n) and I therefor need to try all possible combinations of
> positive and negative eigenvalues to find the correct solution. It
> would also be preferred to try the complex roots too...

How are you planning on deciding which one of the many n-th roots
of your matrix is the "right" one? (Is there some reason to
think that your matrix _has_ an n-th root which is also a
transition matrix???)

> Do you have a better solution to this main problem I would be happy :)
>
> Thanks again,
>
> Sam
>
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>

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Oh, dejanews lets you add a sig - that's useful...


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