Hi. When using Sage notebook in typesetting mode, a leading minus sign doesn't seem to appear.
sage: expand(h_m) -m^2/(2*n - 1) + m + m/(2*n - 1) # This is correct. Now, let's turn on typesetting: sage: expand(h_m) # Doesn't show the leading minus sign. Here is what the text button shows: <html><span class="math">\newcommand{\Bold}[1]{\mathbf{#1}}\frac{m^{2}} {2 \, n - 1} + m + \frac{m}{2 \, n - 1}</span></html> I don't know how to read that, but I don't see a leading minus sign there... Sage Version 4.4.3, Release Date: 2010-06-04 / sagenb.org Firefox 3.6 / Windows 7 Pro -- 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