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Changing the variable order in commutative operators

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• Subject: [mg131341] Changing the variable order in commutative operators
• From: "Dave Snead" <dsnead6 at charter.net>
• Date: Sat, 29 Jun 2013 04:58:11 -0400 (EDT)
• Approved: Steven M. Christensen <steve@smc.vnet.net>, Moderator
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• Newsgroups: comp.soft-sys.math.mathematica
• References: <20130626011529.16DE76A4A@smc.vnet.net> <20130626050451.2B33F6A55@smc.vnet.net>

Hi,

I'm trying to change the order of arguments in the output of commutative 
operators such as
Plus and Times.

For example the input
y+x+z
always gives the output
x+y+z

Is there a way to specify a user defined order on these variables
to get the output
y+x+z
instead ?

Thanks in advance,
Dave Snead 

• References:
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