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Re: silly problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg85314] Re: silly problem
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 5 Feb 2008 19:46:15 -0500 (EST)
  • Organization: Uni Leipzig
  • References: <fo9g1h$sbm$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

k has a value assigned like
k={0,0,0,0,0,0,0,0} ?
and you mix up a function call to the function k[]
with the Part function k[[g]] ???

Regards
   Jens

Francis Bitonti wrote:
> I'm new to Mathematica so this is a very basic question I think. but one
> that has me hung up. I keep getting this error
> 
> Set::write: Tag List in {0,0,0,0,0,0,0,0}[1] is Protected. >>
> 
> 
> my code looks like this.
> 
> *IN:*
> For[i = 1, i < 6 , i++,
>  Print[
>   g = i;
>   k[g] = twoDcalc[e1, a1, nodes[[{edges[[g, 1]], edges[[g, 2]]}]]]
>   ]]
> 
> 
> *
> OUT:
> **Set::write: Tag List in {0,0,0,0,0,0,0,0}[1] is Protected. >>
> *{{3.26002*10^7,7.60672*10^7,-3.26002*10^7,-7.60672*10^7},{7.60672*10^\
> 7,1.7749*10^8,-7.60672*10^7,-1.7749*10^8},{-3.26002*10^7,-7.60672*10^\
> 7,3.26002*10^7,7.60672*10^7},{-7.60672*10^7,-1.7749*10^8,7.60672*10^7,\
> 1.7749*10^8}}*
> 
> Set::write: Tag List in {0,0,0,0,0,0,0,0}[2] is Protected. >>
> *{{1.7749*10^8,7.60672*10^7,-1.7749*10^8,-7.60672*10^7},{7.60672*10^7,\
> 3.26002*10^7,-7.60672*10^7,-3.26002*10^7},{-1.7749*10^8,-7.60672*10^7,\
> 1.7749*10^8,7.60672*10^7},{-7.60672*10^7,-3.26002*10^7,7.60672*10^7,3.\
> 26002*10^7}}
> 
> *Set::write: Tag List in {0,0,0,0,0,0,0,0}[3] is Protected. >>
> General::stop: Further output of Set::write will be suppressed during \
> this calculation. >>
> *{{1.88562*10^8,-1.88562*10^8,-1.88562*10^8,1.88562*10^8},{-1.88562*10^\
> 8,1.88562*10^8,1.88562*10^8,-1.88562*10^8},{-1.88562*10^8,1.88562*10^\
> 8,1.88562*10^8,-1.88562*10^8},{1.88562*10^8,-1.88562*10^8,-1.88562*10^\
> 8,1.88562*10^8}}*
> *
> 
> 


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