Hi, With Sage 6.3, I am getting:
sage: abs(x).diff(x) x/abs(x) sage: abs(I*x).diff(x) -x/abs(I*x) But abs(I*x) == abs(x). So also abs(x).diff(x) and abs(I*x).diff(x) must be the same. But in the first case we get x/abs(x), and in the second we got -x/abs(x). In SymPy, the answer is: ------/// www.mathHandbook.com show http://www.mathHandbook.com/input/?guess=d(abs(x)) -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
