A regression in Maxima 5.17.1 with limits and assumptions?
Subject: A regression in Maxima 5.17.1 with limits and assumptions?
From: Stavros Macrakis
Date: Tue, 23 Dec 2008 11:13:21 -0500
On Tue, Dec 23, 2008 at 1:02 AM, Robert Dodier <robert.dodier at gmail.com>wrote:
> Failing to make the trivial substitution is a substantial missed
> opportunity.
>
Hmm. That opens up an interesting can of worms in the general case.... The
scope of asksign responses is (by default) one %i/%o interaction. So
perhaps something like [abs(x),asksign(x)] should return [x,pos], [0,zero],
or [-x,neg], and not [abs(x),pos/zero/neg]. And what about [if x>0 then a
else b, asksign(x)]? Should that re-simplify the conditional?
-s