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MathGroup Archive 2002

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Re: Get rid of onion-like parentheses

  • To: mathgroup at smc.vnet.net
  • Subject: [mg37180] Re: Get rid of onion-like parentheses
  • From: Tom Burton <tburton at brahea.com>
  • Date: Tue, 15 Oct 2002 04:17:58 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

On 10/13/02 11:24 PM, in article aodnvf$mlm$1 at smc.vnet.net, "JJJ Shen"
<jushen1 at hotmail.com> wrote:

> Here's the code I wrote:
> f[{x_}]:=x;
> f[{x_, y_, z___}]:=f[Join[{x\[CircleTimes]y},{z}]];
> 
> However, the output was not exactly what I expected, it looked like:
> 
> ((a op b) op c) op d
> 
> It seems when doing the "Join" operation, a pair of parenthesis was added.
> 
> Can someone let me know how I can get rid of these parenthesis?

SetAttributes[CircleTimes,Flat]

f[{a,b,c,d}]
a\[CircleTimes]b\[CircleTimes]c\[CircleTimes]d

Tom Burton



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