Comment #2 on issue 1950 by asmeurer: Piecewise((x, 0 < x), (0, Eq(x, 0)), (-x, x < 0))._eval_interval(x, -1, 1) is wrong
http://code.google.com/p/sympy/issues/detail?id=1950
I see. Yes, forget about what I said above; obviously it should evaluate across every sub-interval, I think the solution to the last one is to have it ignore measure zero parts of the domain completely. Otherwise, it tries evaluating oo - oo, which gives nan.
-- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.
