Re: Pattern example
- To: mathgroup at smc.vnet.net
- Subject: [mg19337] Re: Pattern example
- From: Martin Stockhammer <martin.stockhammer at visualanalysis.com>
- Date: Fri, 20 Aug 1999 23:09:26 -0400
- Organization: Visual Analysis GmbH
- References: <7p2vem$ajd@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi chris,
chris schrieb:
> Then
> {{1+a},{2+a},{3+a}} /. t_->c
> c
> this is no more a list, but
The whole list {{1+a},{2+a},{3+a}} matches the pattern and is replaced
by c.
>
> FullForm[{{1+a},{2+a},{3+a}} /. {t_}->c]
> List[c,c,c]
with {t_} only lists with one element for example {1+a} match the
pattern and will be replaced.
Bye
Martin