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selfdefined operators

• To: mathgroup at smc.vnet.net
• Subject: [mg22989] selfdefined operators
• From: Roland Koppenberger <roland at koppenberger.com>
• Date: Sun, 9 Apr 2000 01:45:53 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

I have defined the operator \[CirclePlus] in the following way:

x_ \[CirclePlus] y_ := x y /(x + y)

When type in

1 \[CirclePlus] 2

I get 2/3 as the right result. But when I try to compute

1 \[CirclePlus] 2 \[CirclePlus] 3

the result will not be computed. How can I specify the operator in a
general way?

• Follow-Ups:
  • Re: selfdefined operators
    • From: Carl Woll <carlw@u.washington.edu>
  • Re: selfdefined operators
    • From: Hartmut Wolf <hwolf@debis.com>