Setting up dummy variables
- To: mathgroup at smc.vnet.net
- Subject: [mg35813] Setting up dummy variables
- From: Christopher Maierle <chris at chaos.Physik.uni-dortmund.de>
- Date: Fri, 2 Aug 2002 02:41:41 -0400 (EDT)
- Organization: Universitaet Dortmund
- Sender: owner-wri-mathgroup at wolfram.com
Hi all,
How do I set up a function that behaves like the Mathematica function Sum vis-a-vis
its treatment of dummy variables? For example I can define i=6 and then
enter
Sum[f[i],{i,1,n}]
and mathematica will not make the substitution i->6 even though the output
generally still involves the dummy variable i. I figure this has something
to do with Modules, Blocks, and Holds but I'm not sure how to put it all
together. Any help would be greatly appreciated.
-chris