Trying to calculate and plot eigenvectors of a matrix A. The call A.eigenvectors_right() works, but the output is a mixed list. How to extract the eigenvectors from it to plot them? The attempt: s=Lambda.eigenvectors_right();v=s[1];v[1];v1=v[1];plot(v1) gives an error message... Thank you.
Something like that maybe ?
sage: A = matrix([[2, 3], [3, 5]])
sage: l = flatten([u[1] for u in A.eigenvectors_right()])
sage: add(plot(v) for v in l)
As you can see, v1 is a list containing a single tuple:
sage: v1
[(1, 1.618033988749895?)]
You want to plot the vector described by the inner tuple, not the list. The following should work:
sage: plot(v1[0])
Asked: 2014-09-08 06:06:34 +0100
Seen: 909 times
Last updated: Sep 08 '14
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.