- In each case, one must simply use criterion.
- Is or better approximated by a polynomial?
- One can use same criterion both to choose and/or
subtract off some particularly nasty part (e.g., a singularity)
of .

- Is or better approximated by a polynomial?
- For example
- where may be well approximated by a polynomial and
could be done numerically.
- may be a nasty function to integrate numerically (e.g., with non-integer) but chosen so that we can do analytically.

Geoffrey Fox, Northeast Parallel Architectures Center at Syracuse University, gcf@npac.syr.edu