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

 
 

task #12709: Submission of spectral variational integrator

Submitted by:  roberto porcu <robbb88>
Submitted on:  Wed 19 Jun 2013 03:50:07 PM UTC  
 
Should Start On: Wed 19 Jun 2013 12:00:00 AM UTCShould be Finished on: Fri 30 Aug 2013 10:00:00 PM UTC
Category: Project ApprovalPriority: 5 - Normal
Status: Wait replyPrivacy: Public
Percent Complete: 0%Assigned to: None
Open/Closed: OpenEffort: 0.00

Add a New Comment (Rich MarkupRich Markup):
   

You are not logged in

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

 

Sat 24 Aug 2013 10:42:23 AM UTC, 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>
Site Administrator
Wed 19 Jun 2013 03:50:07 PM UTC, 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 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 2 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sat 24 Aug 2013 10:42:23 AM UTCjllledoShould be Finished onSat 29 Jun 2013 12:00:00 AM UTC=>Fri 30 Aug 2013 10:00:00 PM UTC
      StatusNone=>Wait reply

    Back to the top


    Powered by Savane 3.1-cleanup