Observe (using sagenb.org) sage: M = matrix(ZZ,4,4,sparse=True) sage: M.norm()
Traceback (click to the left of this block for traceback) ... AttributeError: 'sage.matrix.matrix_generic_sparse.Matrix_generic_sparse' object has no attribute 'SVD' sage: M.norm(1) Traceback (click to the left of this block for traceback) ... TypeError: base_ring (=Category of objects) must be a ring and similarly for any other argument to norm. When I do sage: M.base_ring() Integer Ring But if I do sage: M = matrix(ZZ,4,4) # without sparse=True everything works ok -- 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
