Basic conditional statement question.
- To: mathgroup at smc.vnet.net
- Subject: [mg48653] Basic conditional statement question.
- From: jujio77 at yahoo.com (Scott)
- Date: Wed, 9 Jun 2004 04:17:30 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Here is a question I would think has a simple solution. Let's say I
have some variable "a" which is an integer, but I haven't defined it
in Mathematica. I want to run a conditional statement on it.
If[a!=0,Print["such and such"]]
When I do something like this, Mathematica I asume is spitting out a
null statement, because it doesn't do anything. So, how can I define
"a" such that Mathematica knows it isn't =0 yet, still some integer.
The reason I ask is I am calculating Christophel symbols (and such)
and many of them =0, so I want to only output those that are not equal
Thanks for any help,
Prev by Date:
Re: Exporting 3D plots
Next by Date:
ListContourPlot and missing data
Previous by thread:
Re: transforming exponential of sums into product of exponentials
Next by thread:
Re: Basic conditional statement question.