Eigenvalue Algorithm

  • Thread starter brydustin
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brydustin
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I'm taking the math subject GRE in just over a year's time... and I was wondering if there are "ideal" algorithms to have in our tool box to do a computation like this quickly. Obviously the type of matrices in a standardized exam are going to be fairly clean or look dirty but have some less obvious property that makes the calculation trivial (if you see it).
I wouldn't recommend doing the secular determinant as this is slow on computers and for a person taking an exam. For example, there a few good methods if the matrix is 2*2 and real symmetric, which can save you a few seconds; but are there any good tricks in general.
Hum, sorry if this isn't very "precise".
 

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