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#2076 logcontract makes maxima die under Windows 7

None
open
nobody
5
2022-11-03
2010-09-18
Peter Pein
No

I looked for logcontract and did not find a bug like this:
Maxima version: 5.22.1
Maxima build date: 11:48 8/13/2010
Host type: i686-pc-mingw32
Lisp implementation type: GNU Common Lisp (GCL)
Lisp implementation version: GCL 2.6.8

intval:integrate(1/(2+4*x^2+5*x^4), x, 0, 1)$
logcontract(intval);

gives a message that maxima.exe is not working any more (see http://dl.dropbox.com/u/3030567/MaximaDies.png\)

I'll try the same under linux shortly.

Discussion

  • Robert Dodier

    Robert Dodier - 2010-09-23

    logcontract (intval);
    => overflow during multiplication of large numbers

    Maxima version: 5.22.1
    Maxima build date: 22:6 8/11/2010
    Host type: i686-redhat-linux-gnu
    Lisp implementation type: CLISP
    Lisp implementation version: 2.48 (2009-07-28) (built 3459348196) (memory 3490574775)

     
  • Robert Dodier

    Robert Dodier - 2022-11-03
    • Group: --> None
     
  • Robert Dodier

    Robert Dodier - 2022-11-03

    Observed in post-5.46 with GCL, which runs into an out of memory error. I suspect at the root it's the same "numbers too big" error as shown by Clisp.

     
  • Robert Dodier

    Robert Dodier - 2022-11-03
    • labels: --> logcontract, integers
     

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