User`s guide

10-3
At the same time, it is important to appreciate the limitations of computer
analyses. By following a few guidelines, you can avoid certain tools and models
when they are l ikely to g et you i nto trouble. The following sections try to
illustrate, through examples, some of t h e numerical pitfalls to be avoided. We
also encourage you to get the most out of the good algorithms by ensuring, if
possible, that your models give rise to problems that are well-conditioned.