home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!wupost!waikato.ac.nz!maj
- From: maj@waikato.ac.nz
- Newsgroups: sci.math
- Subject: Re: measures of the `size' of infinite sets
- Message-ID: <1992Sep16.092542.10802@waikato.ac.nz>
- Date: 16 Sep 92 09:25:42 +1200
- References: <1992Sep10.014652.9016@infodev.cam.ac.uk> <18nem0INN2vg@function.mps.ohio-state.edu> <1240@kepler1.rentec.com> <1992Sep15.040424.13593@sq.sq.com>
- Organization: University of Waikato, Hamilton, New Zealand
- Lines: 33
-
- In article <1992Sep15.040424.13593@sq.sq.com>, msb@sq.sq.com (Mark Brader) writes:
- >> Here is an exercise (alleged to work, I haven't done it...):
- >> Take the front page of the New York Times. Write down in decimal form
- >> all of the numbers mentioned. Then about 30% of the numbers will
- >> begin with the digit '1'. ...
- >> Or, take an atlas, and look up the lengths of the rivers (in km).
- >> About 30% of them begin with the digit '1'. Repeat, using miles.
- >> Still 30%.
- >
- > Just a side remark here. It occurs to me that a larger fraction of
- > students today will find this "30% effect" surprising or counter-
- > intuitive than was the case when I was in school. You see, in those
- > days, we used *slide rules*...
- > --
- > Mark Brader "True excitement lies in doing 'sdb /unix /dev/kmem'"
- > utzoo!sq!msb, msb@sq.com -- Pontus Hedman
- >
- > This article is in the public domain.
-
- If numbers vary over several orders of magnitude, it may be
- reasonable to treat their fractional parts as uniformly distributed
- on [0,1).
-
- MTB > let k1=logten(2)
- MTB > print k1
- K1 0.301030
-
- --
- Murray A. Jorgensen [ maj@waikato.ac.nz ] University of Waikato
- Department of Mathematics and Statistics Hamilton, New Zealand
- __________________________________________________________________
- 'Tis the song of the Jubjub! the proof is complete,
- if only I've stated it thrice.'
-