taskSavannah Administration - Tasks: task #12709, Submission of spectral variational...

 
 

task #12709: Submission of spectral variational integrator

Submitted by:  roberto porcu <robbb88>
Submitted on:  Wed Jun 19 15:50:07 2013  
 
Should Start On: Wed Jun 19 00:00:00 2013Should be Finished on: Fri Aug 30 22:00:00 2013
Category: Project ApprovalPriority: 5 - Normal
Status: CancelledPrivacy: Public
Percent Complete: 0%Assigned to: Assaf Gordon <agn>
Open/Closed: ClosedEffort: 0.00

Add a New Comment (Rich MarkupRich Markup):
   

You are not logged in

Please log in, so followups can be emailed to you.

 

Tue Aug 12 00:10:19 2014, comment #2:

Hello,

There has been no response for a long while, so I am currently marking this item as "closed" without creating a project.

If you would still like to have your project hosted at Savannah, please register it again.

Regards,
-Assaf.

Assaf Gordon <agn>
Site AdministratorIn charge of this item.
Sat Aug 24 10:42:23 2013, comment #1:

Hi,

Thanks your for submission! I'm sorry about the delay. If you still want the hosting space, please answer on this comment (usual procedure if there has been some delay).

Joan Lledó <jllledo>
Project Member
Wed Jun 19 15:50:07 2013, original submission:

A new project has been registered at Savannah
This project account will remain inactive until a site admin approves or discards the registration.

Registration Administration

While this item will be useful to track the registration process, approving or discarding the registration must be done using the specific Group Administration page, accessible only to site administrators, effectively logged as site administrators (superuser):

Registration Details

  • Name: spectral variational integrator
  • System Name: specvarint
  • Type: non-GNU software and documentation
  • License: GNU General Public License v2 or later

Description:

This project is about Spectral Variational Integrators that are symplectic methods useful to solve Hamiltonian's equations. The code is written for Octave. These are spectral methods that use Legendre polynomials for the function basis and Gauss quadrature rule for the numerical quadrature.
The style used tends to reproduce Matlab ode45 style.
So the function @spectralvarint takes as inputs the functionHandle describing the Hamiltonian of the system, the vector of times, initial conditions (that are generalized coordinates and generalized momenta), and some options.
The output variables are a time vector and a matrix containing calculated coordinates and momenta. The program implements also a timestep-adaptivity on the basis of Richardson extrapolation.
This function could be included in odepkg or in a new package created specially for geometrical integrators.

Other Software Required:

octave odepkg

Tarball URL:

http://savannah.gnu.org/submissions_uploads/spectral_variational_integrator.tar.gz

roberto porcu <robbb88>

 

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

Attach File(s):
   
   
Comment:
   

No files currently attached

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -unavailable- added by agn (Posted a comment)
  • -unavailable- added by jllledo (Posted a comment)
  • -unavailable- added by robbb88 (Submitted the item)
  •  

    Do you think this task is very important?
    If so, you can click here to add your encouragement to it.
    This task has 0 encouragements so far.

    Only logged-in users can vote.

     

    Please enter the title of George Orwell's famous dystopian book (it's a date):

     

     

    Follow 5 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Tue Aug 12 00:10:19 2014agnStatusWait reply=>Cancelled
      Assigned toNone=>agn
      Open/ClosedOpen=>Closed
    Sat Aug 24 10:42:23 2013jllledoShould be Finished onSat Jun 29 00:00:00 2013=>Fri Aug 30 22:00:00 2013
      StatusNone=>Wait reply

    Back to the top


    Powered by Savane 3.1-cleanup