Here are the code: M = matrix(3,[1,-1,-1,-1,3,1,-1,1,3]); v=M.eigenvalues(); v
[2, 0.4384471871911698?, 4.561552812808830?] Q=implicit_plot3d(x^2+y^2+z^2==1/v[1], [x,-3,3], [y,-3,3],[z,-3,3], opacity=0.5); Q Jmol shows nothing. However, if I change 1/v[1] to 2.28 (~1/v[1]) then it shows the sphere. Any idea why? -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
