PHYS-4007/5007 Exam 2 Web Home Page

This web page contains the links of the Exam 2 write-up and the various IDL files needed to carry out the calculations of Exam 2 for PHYS-4007/5007 Computational Physics. These 4 IDL procedure/function files here are in standard ASCII (text) format. Depending on your browser, you will either see a "Download" box when you double click on the ASCII (i.e., IDL) files, or the text will appear in your browser. In this second case, just follow these procedures:

Files to Download

A full description of these files are given in the Exam 2 write-up sent to you via email. Download the following files to a subdirectory where you wish to carry out these calculations (i.e. the so-called working directory) following the directions above. Double click on each of the files listed.

The IDL Files

IMPORTANT NOTE: Due to OIT's paranoia about security issues, files ending in either ".dat" (standard Unix data files) and ".pro" (IDL procedure and function files) will not show up on a web browser even though those files exist on the web server disk. To counteract this, I have changed the name of all ".pro" files to ".txt" files. Make sure that your downloaded IDL files have a filename suffix of ".pro" as shown on web page link below. For instance, when you click on "", this file must have the filename of "" on your computer.   IDL driver code to carry out the calculations and generate the plots.     Supplies ORBITSFINAL and RK4 with the derivative equations.   IDL procedure to creates polar plots of an orbit.   Determines the tick marks for orbit plots.

Note that students will have to supply the correct coding for the differential equations in the ORBEQNFINAL function as explained in this code and on the Exam 2 write-up sent via email.

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Last modified: November 23, 2014 by D.G. Luttermoser