Re: A question about pattern
- To: mathgroup at smc.vnet.net
- Subject: [mg53832] Re: [mg53815] A question about pattern
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Sat, 29 Jan 2005 06:02:40 -0500 (EST)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
sr=({a___,b_,c_,d___}/;c>b):>{a,2 b,3 c,d};
{a,3,2,d,e}/.sr
{a,3,2,d,e}
{a,2,3,d,e}/.sr
{a,4,9,d,e}
Bob Hanlon
>
> From: Daohua Song <ds2081 at columbia.edu>
To: mathgroup at smc.vnet.net
> Date: 2005/01/28 Fri AM 02:44:04 EST
> To: mathgroup at smc.vnet.net
> Subject: [mg53832] [mg53815] A question about pattern
>
> Dear Group,
> I am just struggling by the following question: I want to build a
> rule like this,
> List/.{a___,b_,c_?(#>b&),d___}->{a,2 b,3 c,d}
> But it doesn't work.
>
> please help me! Thanks
> DHSONG
>
>