[Maxima-bugs] [ maxima-Bugs-2556133 ] "at" should do parallel substitutions

[SourceForge.net <no...@so...>]

Bugs item #2556133, was opened at 2009-02-02 02:10
Message generated for change (Comment added) made by crategus
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=2556133&group_id=4933

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: None
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Barton Willis (willisbl)
Assigned to: Nobody/Anonymous (nobody)
Summary: "at" should do parallel substitutions

Initial Comment:
(%i14) at(atan2(y^2+1,x),[y=%i,x=0]);
atan2(0,0) has been generated.

(%i18) at(atan2(y^2+1,x),[x=0,y=%i]);
(%o18) %pi/2

(%i17) atvalue (diff(f(x,y),x,6,y,9), [x = 0, y = 1], a^2);
(%o17) a^2
(%i18) :lisp(symbol-plist '$f);
(MPROPS (NIL ATVALUES
             (((6 9) (0 1) ((MEXPT SIMP) $A 2))
              ((0 0) (0 1) ((MEXPT SIMP) $A 2)))))

----------------------------------------------------------------------

>Comment By: Dieter Kaiser (crategus)
Date: 2010-06-19 21:14

Message:
Fixed in comm2.lisp revision 1.38.
Closing this bug report as fixed.
Dieter Kaiser

----------------------------------------------------------------------

Comment By: Barton Willis (willisbl)
Date: 2009-02-02 02:13

Message:
The way atvalue stores values makes it clear that at should do
substitutions in parallel.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=2556133&group_id=4933