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Re: Default value

f[i_, m_] := f[i, m, i];

f[i_, m_, iv_] := ...

Bob Hanlon

---- Bruno Campanini <BC at> 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

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