Acknowledgments

The authors thank the Numerical Algorithms Group Ltd. (NAG) who provided us with copies of their excellent compiler with which we could test our code. In particular, thanks go to Mr. Malcolm Cohen, Mr. Rob Holmes, Mr. Ian Hounam, Mr. Rob Meyer, Mr. Mike Modica, and Mr. John Morrissey.

The Portland Group provided us with a copy of their compiler. Special thanks go to Ms. Laura Gibon for arranging that.

We thank Mr. Art Lazanoff for the use of his network server system for our CVS repository.

We thank Mr. Dan Nagle who offered vigorous criticism and some good suggestions.

The following persons read over the manuscript; to them we owe our gratitude: Dr. Greg Brown, Dr. Charles Crawford, Mr. Ryan O'Kuinghttons, and Dr. James Hlavka.

Thanks go to Ms. Stacy L. Castillo at the IBM Corporate Archives for arranging permission to use the material for the frontispiece.

It was a great pleasure to work with our editors at Cambridge University Press: Ms. Heather Bergman, Ms. Lauren Cowles and Mr. David Jou.

Typographical Conventions

The following typographical conventions are used in this book:

1. • medium-weight serif font – normal text

2. This sentence is written in the font used for normal text.

3. • bold italicized serif font – rules

4. • medium-weight sans serif font – computer code

5. • bold sans serif font – Fortran keywords

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