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written by Juan Aguirregabiria
edited by Wolfgang Christian
The Ejs Action for the Harmonic Oscillator model displays the trajectory of a simple harmonic oscillator by minimizing the classical action.  The simulation displays the endpoints of the motion (t,x) which can be changed by using the text boxes or dragging, and displays the new trajectory as well as calculates the physical trajectory (that minimizes the action).  You can modify this simulation if you have Ejs installed by right-clicking within the plot and selecting "Open Ejs Model" from the pop-up menu item.  

Ejs Action for the Harmonic Oscillator model was created using the Easy Java Simulations (Ejs) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.  Double clicking the ejs_ehu_analytical_mechanics_action.jar file will run the program if Java is installed.  Ejs is a part of the Open Source Physics Project and is designed to make it easier to access, modify, and generate computer models.  Additional Ejs models for classical mechanics are available.  They can be found by searching ComPADRE for Open Source Physics, OSP, or Ejs.

Please note that this resource requires at least version 1.5 of Java (JRE).
View the source code document attached to this resource
Subjects Levels Resource Types
Classical Mechanics
- General
Oscillations & Waves
- Oscillations
= Simple Harmonic Motion
- Upper Undergraduate
- Instructional Material
= Activity
= Interactive Simulation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
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Access Rights:
Free access
License:
This material is released under a GNU General Public License Version 3 license. Additional information is available.
Rights Holder:
Juan M. Aguirregabiria
Merlot:
pending
Keywords:
Easy Java Simulations, Ejs, OSP, Open Source Physics, action, lagrangian, least action
Record Creator:
Metadata instance created August 19, 2008 by Mario Belloni
Record Updated:
June 4, 2014 by Andreu Glasmann
Last Update
when Cataloged:
August 18, 2008
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
J. Aguirregabiria, Computer Program EJS ACTION FOR THE HARMONIC OSCILLATOR MODEL, Version 1.0 (2008), WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7892&DocID=668).
AJP/PRST-PER
J. Aguirregabiria, Computer Program EJS ACTION FOR THE HARMONIC OSCILLATOR MODEL, Version 1.0 (2008), <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7892&DocID=668>.
APA Format
Aguirregabiria, J. (2008). Ejs Action for the Harmonic Oscillator Model (Version 1.0) [Computer software]. Retrieved July 31, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7892&DocID=668
Chicago Format
Aguirregabiria, Juan. "Ejs Action for the Harmonic Oscillator Model." Version 1.0. http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7892&DocID=668 (accessed 31 July 2014).
MLA Format
Aguirregabiria, Juan. Ejs Action for the Harmonic Oscillator Model. Vers. 1.0. Computer software. 2008. Java (JRE) 1.5. 31 July 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7892&DocID=668>.
BibTeX Export Format
@misc{ Author = "Juan Aguirregabiria", Title = {Ejs Action for the Harmonic Oscillator Model}, Month = {August}, Year = {2008} }
Refer Export Format

%A Juan Aguirregabiria
%T Ejs Action for the Harmonic Oscillator Model
%E Wolfgang Christian, (ed)
%D August 18, 2008
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7892&DocID=668
%O 1.0
%O application/java

EndNote Export Format

%0 Computer Program
%A Aguirregabiria, Juan
%D August 18, 2008
%T Ejs Action for the Harmonic Oscillator Model
%E Christian, Wolfgang
%7 1.0
%8 August 18, 2008
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7892&DocID=668


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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

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