Thanks, this sage: from scipy.signal.filter_design import * sage: butter(2r,0.5r)
works beautifully. I really appreciate the help provided (within moments!) on this list. PS. the reason I'm doing this in sage and not in scipy itself is that I can't build scipy on my machine (OSX 10.5 powerPC), and binaries are not supplied for this architecture. Numpy builds without problems, though. -- Dan --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
