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Default value

• To: mathgroup at smc.vnet.net
• Subject: [mg74850] Default value
• From: "Bruno Campanini" <BC at gmail.com>
• Date: Sun, 8 Apr 2007 05:05:18 -0400 (EDT)

I have a function   f [ i_, m_, iv_ ]  and would like
to have a default value for iv equal to i.

I neither can write   f [ i_, m_, iv_: i_ ], nor   f [ i_, m_, iv_ : i ]
ans the error "Default value for iv_ contains a pattern" arises.

Any workaround?

Bruno