June 9, 1996
6
somewhat depressing that the 60's version of Cliff's notes gives a better and more in-depth
coverage of the problems of numerical analysis than most of the current numerical analy-
sis books, such as Burden and Faires
(2)
.
Andrzej Marciniak has produced a very good book
Numerical Solutions of the N-
body Problem
(12)
. It covers mostly information in sections 1.0 and 2.0, but it gives very
detailed (but very terse) proofs of all the items that this paper glosses over. Most other ref-
erences to material covering the N-body problem are research papers that apply mostly to
section 4.0.
Finally, a request from the author: the XStar program and this document were both
created as learning exercises for myself, and in that light, I am very interested in hearing
any feedback about either one. Everything from bug reports, notes about typos and gram-
matical errors, to any major misunderstandings or omissions are welcome. XStar contains
several features that were donated by other people, and any new features to XStar or addi-
tions to this document will be seriously considered.
FIGURE 1. The Paths of seven stars, as created by the XStar program
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