#2627 asksign / integrate fails in Maxima 5.30.0

None
closed
nobody
5
2013-09-22
2013-08-29
Wilhelm Haager
No

Supposed bug in Maxima 5.30.0

An answer for the request for a case differentiation
in the following expression is not possible
(neither in wxMaxima nor in the command line program):

(%i1) integrate(sin(omega*t)*exp(-s*t),t,0,inf);
Is s positive, negative or zero?

An answer is not accepted (neither n, nor z, nor p).
The old Maxima version 5.27.0 works fine.

Discussion

  • Robert Dodier
    Robert Dodier
    2013-09-03

    • labels: --> Lisp Core - Integration, Lisp Core - Assume
    • summary: ase differentiation for integrate fails in Maxima 5.30.0 --> asksign / integrate fails in Maxima 5.30.0
     
  • Robert Dodier
    Robert Dodier
    2013-09-03

    Revised summary to be more informative (incidentally fixing typographical error). Added tags.

     
  • Robert Dodier
    Robert Dodier
    2013-09-22

    • Description has changed:

    Diff:

    --- old
    +++ new
    @@ -4,9 +4,10 @@
     in the following expression is not possible
     (neither in wxMaxima nor in the command line program):
    
    -
    +~~~~
     (%i1) integrate(sin(omega*t)*exp(-s*t),t,0,inf);
     Is s positive, negative or zero?
    +~~~~
    
     An answer is not accepted (neither n, nor z, nor p).
     The old Maxima version 5.27.0 works fine.
    
    • status: open --> closed
     
  • Robert Dodier
    Robert Dodier
    2013-09-22

    Fixed by commit d4db75dd78c0c66.