from matplotlib.numerix import *
from numarray import *
from pylab import plot, subplot, legend, axis, xlabel, ylabel, text, show, title, zeros, scatter
from LinearAlgebra import *
Error.setMode(all=None, overflow='warn', underflow='ignore', dividebyzero='warn', invalid='warn')

L = array([[64, -25],[-25, 64]])
print eigenvectors(L)