GNU Octave - Bugs: bug #49838, ode23 and ode45 don't correctly...

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bug #49838: ode23 and ode45 don't correctly handle a constant mass matrix

Submitter:	Bill Greene <billgreene>
Submitted:	Tue 13 Dec 2016 08:33:51 PM UTC


Category:	Octave Function	Severity:	3 - Normal
Priority:	5 - Normal	Item Group:	Incorrect Result
Status:	None	Assigned to:	cdf
Originator Name:		Open/Closed: *	Open
Release: *	4.2.0	Operating System: *	Any
Fixed Release:	None	Planned Release:	None

* Mandatory Fields

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Tue 13 Dec 2016 08:33:51 PM UTC, original submission:

The Mass option is not being correctly handled.

This is basically the same as the problem reported against the
odepkg versions of these functions in this bug report:
https://savannah.gnu.org/bugs/?func=detailitem&item_id=47596

But I'm resubmitting since these functions are now part of
core Octave.

I have attached two patch files that fix this problem.

Bill Greene <billgreene>

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

Attach Files:


Comment:

Attached Files

file #39215: ode23.patch added by billgreene (2KiB - application/octet-stream)

file #39216: ode45.patch added by billgreene (1KiB - application/octet-stream)

Depends on the following items: None found

Items that depend on this one: None found

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-email is unavailable- added by cdf (Updated the item)

-email is unavailable- added by billgreene (Submitted the item)

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Follow 3 latest changes.

Date	Changed by	Updated Field	Previous Value	Replaced by
2016-12-14	cdf	Assigned to	None	cdf
2016-12-13	billgreene	Attached File	-	Added ode23.patch, #39215
		Attached File	-	Added ode45.patch, #39216

GNU Octave - Bugs: bug #49838, ode23 and ode45 don't correctly...

bug #49838: ode23 and ode45 don't correctly handle a constant mass matrix

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