Re: Default value
- To: mathgroup at smc.vnet.net
- Subject: [mg74864] Re: [mg74850] Default value
- From: "Adriano Pascoletti" <pascolet at dimi.uniud.it>
- Date: Mon, 9 Apr 2007 06:10:44 -0400 (EDT)
This should solve your problem
f[i_, m_, iv_] := {i, m, iv}
f[i_, m_] := f[i, m, i]
Adriano Pascoletti
On 4/8/07, Bruno Campanini <BC at gmail.com> wrote:
>
> 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
>
>