Mathematica 9 is now available
Student Support Forum
Student Support Forum: 'Define a variable to be positive' topicStudent Support Forum > General > Archives > "Define a variable to be positive"

Next Comment >Help | Reply To Topic
Author Comment/Response
Vinod Suresh
04/28/99 9:32pm

   I've been pulling my hair out for a couple of hours trying to
define a variable x to be positive. Online help says that typing

>> Positive[x] = True

should do it, but it doesn't work and gives a message saying

>> Set::write : Tag Positive in Positive[x] is Protected

I cleared x before trying this. I am positively flummoxed and am
in desperate need of help to save my receding hairline.
Thanks in advance,
         - Vinod.

URL: ,

Subject (listing for 'Define a variable to be positive')
Author Date Posted
Define a variable to be positive Vinod Suresh 04/28/99 9:32pm
Re: Define a variable to be positive Forum Modera... 04/28/99 9:37pm
Next Comment >Help | Reply To Topic