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MathGroup Archive 1998

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Variables names

  • To: mathgroup at smc.vnet.net
  • Subject: [mg15002] Variables names
  • From: Kim Allemand <kim.allemand at epfl.ch>
  • Date: Sat, 5 Dec 1998 01:30:09 -0500
  • Organization: EPFL
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,
I have a square matrix Q of dimension N and would like to generate the
quadratic function $\sum_{i,j}q_{ij}x_i x_j$. The problem is how to say
to Mathamatica that the variables names are x1, x2, etc. Is it possible
to generate variables names in an automatic way? A possibility would be
to generate manually a vector NN={x1, x2, x3, ....} of dimension N and
then to pick NN[[i]] for the ith variable name, but imagine when
N=1000... !!
Thanks, Kim



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