Re: new functional operator
- To: mathgroup at smc.vnet.net
- Subject: [mg125379] Re: new functional operator
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Sat, 10 Mar 2012 06:18:40 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <jit0me$e32$1@smc.vnet.net> <jivd47$n7j$1@smc.vnet.net> <jj9ur8$dtl$1@smc.vnet.net> <201203091109.GAA26863@smc.vnet.net>
- Reply-to: murray at math.umass.edu
An unfortunate choice of notation, \[Del], for that operator. After all
\[Del] is a universal notation for grad, the gradient operator.
On 3/9/12 6:09 AM, roby wrote:
> Ok, next version.
>
> One can look for an prefix operator with no buit in meaning to modify
> the function in question such that it acts mapping,
> this way we can use the standard // postfix operator and just modify
> the behavoir of the function:
>
>
> \[Del] fn_ := fn /@ #&
>
> {1,2,3,4}//\[Del]f//\[Del]g
>
> Out[5]= {g[f[1]], g[f[2]], g[f[3]], g[f[4]]}
>
> (looks all nice in a Notebook)
>
>
>
> Robert
>
--
Murray Eisenberg murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 413 549-1020 (H)
University of Massachusetts 413 545-2859 (W)
710 North Pleasant Street fax 413 545-1801
Amherst, MA 01003-9305
- References:
- Re: new functional operator
- From: roby <roby.nowak@gmail.com>
- Re: new functional operator