Todd Burrell is right. The secondary-school algebra is immediate: n x 1 + n - 1 = 44, 2n - 1 = 44, n = 45/2 = 22.5, floor(22.5) = 22.
Twenty-two levels is of course clumsy for human use, but program-constructed indices having so many levels may well be useful in some situations. John Gilmore, Ashland, MA 01721 - USA ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
