Sign Declaration
- To: mathgroup at smc.vnet.net
- Subject: [mg80028] Sign Declaration
- From: Mr Ajit Sen <senra99 at yahoo.co.uk>
- Date: Sat, 11 Aug 2007 02:02:21 -0400 (EDT)
Dear MathGroup,
Given the list A= {a,b,c,d,e,f,g,h}, I'd like to
tell
Mathematica (5.2) that a,b,...,e are +ve, and f,g,h are -ve.
I'm using the following
Table[Sign[A[[i]]]^=1,{i,5}];
Table[Sign[A[[i]]]^=-1,{i,6,8}];
My queries are :
1. Is it possible to combine the above into 1
Table[]?
2. How do I achieve the same thing with the construct
x/:Sign[x]=1
in Table ?
3. Any more efficient ways of doing those sign
declarations?
Thanking you in advance.
Ajit.
___________________________________________________________
Yahoo! Answers - Got a question? Someone out there knows the answer. Try it
now.
http://uk.answers.yahoo.com/
- Follow-Ups:
- Re: Sign Declaration
- From: Andrzej Kozlowski <akoz@mimuw.edu.pl>
- Re: Sign Declaration