bugGNU Octave - Bugs: bug #32523, misstatement in help message for...

 
 

bug #32523: misstatement in help message for "pascal"

Submitter:  None
Submitted:  Thu 17 Feb 2011 08:31:07 PM UTC
   
 
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Documentation
Status:  Fixed Assigned to:  None
Originator Name:  M. M. Sussman Originator Email:  -email is unavailable-
Open/Closed:  * Closed Release:  * 3.2.3
Operating System:  * GNU/Linux Fixed Release:  None
Planned Release:  None
* Mandatory Fields

Add a New Comment Rich Markup
   

Mon 28 Feb 2011 02:26:56 AM UTC, comment #1: 

Fixed in this changeset (http://hg.savannah.gnu.org/hgweb/octave/rev/f5a5e5252b5a).  You will need to build from the development source or wait for 3.4.1 to see the changes.

Rik <rik5>
Group administrator
Thu 17 Feb 2011 08:31:07 PM UTC, original submission:  

The response to "help pascal" states:

 -- Function File:  pascal (N, T)
     Return the Pascal matrix of order N if `T = 0'.  T defaults to 0.
     Return lower triangular Cholesky factor of the Pascal matrix if `T= 1'.


In fact, the result of pascal(N,1) is a lower triangular matrix with columns of alternating sign.  This result is correct in that it agrees with Matlab, but it is NOT the Cholesky factor.  The Cholesky factor has only positive values on the diagonal.  The matrix returned for T=-1 IS the Cholesky factor.

Anonymous

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:
   
   
Comment:
   

No files currently attached

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -email is unavailable- added by rik5 (Posted a comment)
  • -email is unavailable- added by None (Submitted the item)
  •  

    There are 0 votes so far. Votes easily highlight which items people would like to see resolved in priority, independently of the priority of the item set by tracker managers.

    Only group members can vote.

     

    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2011-02-28 rik5 StatusNone Fixed
        Open/ClosedOpen Closed

    Back to the top

    Powered by Savane 3.13-caa5.
    Corresponding source code