#7401: Derivative at a point is not translated into Maxima
-------------------------------------+-------------------------------------
       Reporter:  robert.marik       |        Owner:  was
           Type:  defect             |       Status:  needs_work
       Priority:  major              |    Milestone:  sage-
      Component:  interfaces         |  duplicate/invalid/wontfix
       Keywords:  derivative, at,    |   Resolution:  fixed
  maxima                             |    Merged in:
        Authors:                     |    Reviewers:  Nils Bruin, Peter
Report Upstream:  N/A                |  Bruin
         Branch:                     |  Work issues:
   Dependencies:                     |       Commit:
                                     |     Stopgaps:
-------------------------------------+-------------------------------------

Comment (by kcrisman):

 As you say, e.g.
 {{{
 sage: x,y,=var('x y')
 sage: a = function('f', x, y).diff(x).subs(x=4).subs(y=8)
 sage: b=maxima(a); b
 ?%at('diff('f(t0,t1),t0,1),[t0=4,t1=8])
 sage: b.sage()
 D[0](f)(4, 8)
 }}}
 Huh.  Maybe this is a side effect of making symbolic variables unique in
 Maxima?  Or the library interface?  I bet no one has looked at this for a
 ''long'' time.

--
Ticket URL: <http://trac.sagemath.org/ticket/7401#comment:22>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

-- 
You received this message because you are subscribed to the Google Groups 
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.

Reply via email to