I'm not sure how to covert those sqrt expressions into what you want. However, you can see that they are what you're expecting:
sage: A = matrix([[-1,-1+I],[1,0]]) sage: evs = A.eigenvalues(); evs [(-sqrt(4*I - 3) - 1)/2, (sqrt(4*I - 3) - 1)/2] sage: map(CC, evs) [-1.00000000000000 - 1.00000000000000*I, 1.00000000000000*I] --Mike --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
