Andrei Alexandrescu wrote:
Actually I seem to remember that "Numerical recipes in C" was widely
criticized for having incredibly strong restrictions on the published code.
The license is, from my copy of the 1987 edition:
"Although this book and its programs are copyrighted, we specifically
authorize you, the reader of this book, to make one machine-readable
copy of each program for your own use. [...] Distribution of
machine-readable programs (either as copied by you or as purchased) to
any other person is not authorized."
