[Maxima-bugs] [ maxima-Bugs-2938716 ] ezunits: Problem with symbols evaluating to 0

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Bugs item #2938716, was opened at 2010-01-24 18:09
Message generated for change (Comment added) made by hgeyer
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Category: Share Libraries
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: ezunits: Problem with symbols evaluating to 0

Initial Comment:
Consider the following session. %o5 is ok but %o6 is clearly wrong. 

Maxima 5.20post http://maxima.sourceforge.net
using Lisp CLISP 2.44.1 (2008-02-23)
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) display2d:false;
(%o1) false
(%i2) load("ezunits");
(%o2) "/usr/local/share/maxima/5.20post/share/contrib/ezunits/ezunits.mac"
(%i3) a:aa`X;
(%o3) aa ` X
(%i4) b:0;
(%o4) 0
(%i5) 1/(a+b);
(%o5) 1/aa ` 1/X
(%i6) 1/('a+'b);
(%o6) 1/(b+a) ` 1/2
(%i7) ev(%);
(%o7) (1/aa ` 1/X)/2
(%i8) ev(%);
(%o8) 1/(2*aa) ` 1/X


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>Comment By: Harald Geyer (hgeyer)
Date: 2010-01-24 18:12

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You can respond by visiting: 
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