Important: Project 3 updates

Hi all,
I have updated the Project 3 description with some new details. This is to make it easier for us to help you debug problems in your code, and to avoid you spending too much time trying out different simulation settings. Below is a summary of the changes -- make sure to read the relevant parts of the project page carefully.

• In the Numbers and units section I have specified that you should use d = 0.05 cm = 500 micrometres and V0 = 25 mV throughout the project. (That means that you don't have to change these Penning trap variables between Problem 8 and Problem 9).
• In Problem 8 I now ask you to simulate only 50 microseconds, rather than 100 microseconds. (This should make some of the plots easier to read.)
• In Problem 8 I have specified the exact initial positions and velocities you should use for the two particles, and exactly which plots to make.
• For the tasks in Problem 8 that concerns a comparison between the numerical and analytical result, I have specified exactly which stepsizes you should run your simulations with, and I've reduced the number of simulations from five to four.
• At the end of Problem 8 I have added a set of notes with some suggestions you might find useful.
• I've removed one of the questions from Problem 9.

Note: If you happen to already be completely done with Problem 8, and have already written the relevant parts of your report, you don't have to redo anything. Just add a comment when you submit your report that the work on Problem 8 was done before the project description was updated.

Best,
Anders