bugAxiom Computer Algebra System - Bugs: bug #5977, x^2+1::DMP([x],INT)

 
 

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bug #5977: x^2+1::DMP([x],INT)

Submitted by:  Bill Page <billpage1>
Submitted on:  Wed 15 Oct 2003 05:34:07 AM UTC  
 
Category:  algebra Severity:  3 - Normal
Item Group:  code bug Status:  Fixed
Privacy:  Public Assigned to:  None
Originator Name:  Bill Page Open/Closed:  Open
Release:  alpha pre-release September 2003 CVS Reproducibility:  None
Fixed Release:  20031110
Error message: 

>> System error:

  Caught fatal error (memory may be damaged)
protected-symbol-warn called with (NIL)

Example of code trigerring the bug: 

x^2+1::DMP([x],INT)

Internal cause: 

Perhaps a problem with interpreter's coerce logic for DistributedMultivariatePolynomial?

Mon 27 Dec 2004 01:07:00 PM UTC, comment #2: 

(x^2+1)::DMP([x],INT) works
1::DMP([x],INT) works
(x^2) + 1::DMP([x],INT) fails

Tim Daly <axiom>
Project Administrator
Wed 12 Nov 2003 03:50:32 AM UTC, comment #1: 
[Fix (i.e. patch)]

all cases work now

Tim Daly <axiom>
Project Administrator
Wed 15 Oct 2003 05:34:07 AM UTC, original submission:  

x^2+1::DMP([x],INT)  => fails
x^2+1::HDMP([x],INT) => fails
x^2+1::UP(x,INT)     => works
x^2+1::POLY INT      => works
(x^2)::DMP([x],INT)+1::DMP([x],INT)  => works

Bill Page <billpage1>
Project Member

 

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Follow 4 latest changes.

Date Changed by Updated Field Previous Value => Replaced by
2004-12-27 axiom Open/ClosedClosed => Open
2003-11-12 axiom StatusNone => (Error - Not Found)
    Open/ClosedOpen => (Error - Not Found)
    Fixed Release =>

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