Hi Sage group: I have met a problem. The code is as follow.
import numpy as np A = np.mat([[1, 2, 3], [4, 5, 6], [7, 8, 9]]) print A[:, 1].shape for i in range(0, 3): print A[:, i].shape the result is (1, 3) (3, 1) (3, 1) (3, 1) Is there any difference between "print A[:, 1]" and "print A[:, i]"? -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org