Did something change?

*To*: mathgroup at smc.vnet.net*Subject*: [mg58109] Did something change?*From*: Ronald Bruck <bruck at math.usc.edu>*Date*: Sat, 18 Jun 2005 06:08:27 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

Recently I created a list of several matrices, something like Do[F[i] = IdentityMatrix[8]; F[i][[1,3]] = 7, {i,10}] and was surprised to get the message that F[i] wasn't a symbol. I'm pretty sure code similar to that worked prior to Mathematica 5. Did something change? I've also tried Symbolize[F[i]] in that loop, but it doesn't help; Mathematica refuses to access part [[1,3]] of F[i], claiming F[i] isn't a symbol. How are you supposed to set the individual values of a matrix if you can't do this? This is an EXTREMELY unhelpful "feature". --Ron Bruck

**Follow-Ups**:**Re: Did something change?***From:*Andrzej Kozlowski <andrzej@akikoz.net>

**Re: Did something change?***From:*Adel Elsabbagh <aelsabbagh@gmail.com>