Thanks to James Holtman for the confirmation of the IEEE definition, and to Marc Schwartz and Roger Koenker for pointing out ".Machine" which I had not been aware of!
For the latter, the information I wanted is in > .Machine$double.digits [1] 53 so that the largest integer exactly represented is indeed 2^53 -1. Best wishes to all, Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <[EMAIL PROTECTED]> Fax-to-email: +44 (0)870 167 1972 Date: 13-Aug-03 Time: 14:48:48 ------------------------------ XFMail ------------------------------ ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help