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#2545 Integrate fails on exp(2^(3/2)*x^2 - sqrt(2)*x^2) with "quotient by zero"

None
open
nobody
5
2013-05-24
2013-02-09
Rupert Swarbrick
No

Reported at http://permalink.gmane.org/gmane.comp.mathematics.maxima.general/41138

Maxima 5.29.1 http://maxima.sourceforge.net
using Lisp GNU Common Lisp (GCL) GCL 2.6.7 (a.k.a. GCL)
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) P : exp(2^(3/2)*x^2 - sqrt(2)*x^2);
                               3/2  2            2
                              2    x  - sqrt(2) x
(%o1)                       %e
(%i2) integrate(P,x);

`quotient' by `zero'
 -- an error. To debug this try: debugmode(true);

Discussion

  • Robert Dodier
    Robert Dodier
    2013-05-24

    • labels: --> Lisp Core - Integration
     
  • Robert Dodier
    Robert Dodier
    2013-05-24

    Observed in current development version.

    Maxima version: "branch_5_30_base_90_g122d48e_dirty"
    Maxima build date: "2013-05-22 18:42:44"
    Host type: "i686-pc-linux-gnu"
    Lisp implementation type: "SBCL"
    Lisp implementation version: "1.0.49"