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[Axiom-developer] [bugs #10312] (new) Problems raising a UTS to a negati
From: |
Bill Page |
Subject: |
[Axiom-developer] [bugs #10312] (new) Problems raising a UTS to a negative integer power |
Date: |
Fri, 21 Jan 2005 23:52:33 -0600 |
This is an automated notification sent by Savannah.
It relates to:
bugs #10312, project Axiom Computer Algebra System
==============================================================================
LATEST MODIFICATIONS of bugs #10312:
==============================================================================
Posted by: Bill Page <billpage1>
Posted on: 2005-01-22 05:51 (Canada/Eastern)
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Status: None -> transferred
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OVERVIEW of bugs #10312:
==============================================================================
URL:
<http://savannah.nongnu.org/bugs/?func=detailitem&item_id=10312>
Summary: Problems raising a UTS to a negative integer power
Project: Axiom Computer Algebra System
Submitted by: kratt6
Submitted on: Tue 09/07/2004 at 14:28
Category: algebra
Severity: 5 - Average
Item Group: code bug
Status: transferred
Privacy: Public
Assigned to: billpage1
Originator Name:
Originator Email:
Open/Closed: Open
Release:
Reproducibility: None
Fixed Release:
Error message: >> Error detected within library code:
** rational power of coefficient undefined
protected-symbol-warn called with (NIL)
Example of code trigerring the bug: p:=(1/2+n)::UTS(FRAC INT, 'n, 0)
(p**(-1))$UTS(FRAC INT, 'n, 0)
Internal cause:
_______________________________________________________
The code below raises an unnecessary error. The problem
is in sttaylor.spad/powern, where no distinction between rational and integer
powers are made.
The fix is easy. In fact, I just realize that the problem does not exist in
SUPS, so we can just take the definition there. I'll submit a patch tomorrow.
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Follow-up Comments:
-------------------------------------------------------
Date: Wed 09/08/2004 at 09:09 By: Martin Rubey <kratt6>
resolved in patch #3349
==============================================================================
This item URL is:
<http://savannah.nongnu.org/bugs/?func=detailitem&item_id=10312>
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