Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
1997
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 1997

[Date Index] [Thread Index] [Author Index]

Search the Archive

the Union of real numbers

  • To: mathgroup at smc.vnet.net
  • Subject: [mg7004] the Union of real numbers
  • From: rustybel at foothill.net (Russell Towle)
  • Date: Thu, 1 May 1997 14:48:50 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

I am trying to apply the Union function to a list of real numbers, in which
many duplicates occur.  However, small differences between the numbers
cause some of the duplicates to be retained instead of discarded.

Suppose the list of real numbers is called k, my present work-around is as
follows:

Union [ Rationalize [ k, 10^-6 ] ].

This does discard the duplicates.  Is there a better method?

Russell Towle
Giant Gap Press:  books on California history, digital topographic maps
P.O. Box 141
Dutch Flat, California 95714
------------------------------
Voice:  (916) 389-2872
e-mail:  rustybel at foothill.net
------------------------------




  • Prev by Date: Re: Help - Axes coordinates values
  • Next by Date: Re: HTML and equations
  • Previous by thread: Re: Help - Axes coordinates values
  • Next by thread: Re: the Union of real numbers