On 1/24/13 9:29 AM, Ivan Andrus wrote:
Unfortunately, finding the Jordan form finds numeric instead of exact
eigenvalues even though it is possible to find exact values in your case.
You can use QQbar as the base ring to get exact eigenvalues:
http://aleph.sagemath.org/?z=eJzLTSwpyqzQCAxMSizSieZSAIJoAyCho2AIJg1QyVgdiBJDfRO4sDESG0kJ1BR9I7gknI2qBNMUoOlopiAphLNjuWI19bLyi1IS8-LT8otyNUqKEvOKQazEksz8PNuQotJUTQBVWy3F&lang=sage
(they appear as numeric approximations, but that's just for convenience;
the calculations are exact)
Thanks,
Jason
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