You may freely download and distribute these codes in their original form without modification. Modifications are allowed without permission but you cannot rename the codes or alter the list of authors. My permission is NO LONGER required for major modifications, changes in name or additions to the author list. I will not be responsible for any third party alterations to the code. My only official code is on this web site.
Acknowledgements
Any results derived from the use of these codes and published in any form, by voice, proceedings, conference contributions, journals, theses, on web sites or other electronic form of storage, or by private communication, are requested to acknowledge, the codes by name and the authors of the version used as displayed by the codes. For codes downloaded from this site I, William D M Rae, Knoll House, Garsington, Oxford, am the sole author. The web site should also be acknowledged.