Nbody application for the Apple iPhone and iPod Touch

Nbody motion simulation application for the Apple iPhone and iPod Touch
December 2009 (updated February 2010)

(iPhone and iPod Touch are trademarks of Apple, Inc.)

The Nbody v1.0.1 application is now available, only from the Apple iTunes store. (Search for 'Nbody' or 'Sky Coyote', or browse the Education category).

Direct link (in iTunes): http://itunes.com/apps/nbody

Version 1.0.1 is virtually identical to version 1.0, but has been tested on both an iPhone and an iPod Touch device.

NOTE: Nbody is now good-to-go on iPod Touch from iTunes!

The Nbody application is self-contained and complete as-is, and includes examples and a user's manual within the program. This website is meant only as an additional resource to make your Nbody experience more enjoyable.

Please send comments, examples you would like to share, and bug reports to:

(iTunes is a trademark of Apple, Inc.)

1. Introduction.

'Nbody' is a small, simple application that simulates n-body gravitational motion of discrete masses using 'classic' 4th-order Runge-Kutta integration. You can create simulations of up to 100 masses, or run and edit one of the built-in examples. The display of motion can be rotated and zoomed in 3-d while running.

All simulation data are saved when you quit the program, and are automatically reloaded next time to start from the same place. You can save edited simulations to 'disk' or the pasteboard for export via email. Simulations can be downloaded from a website or via email as text. There is a built-in user's manual, and a companion website with additional information.

2. Screenshots of all program views.

3. Screenshots of all built-in examples.

4. Copy of built-in user's manual.

5. Tutorial.

6. Guide to importing text examples.

7. More examples.

8. Frequently asked questions and answers.

9. Known issues about version 1.0.1.