Re: setting discrete values for a function -- newbie
- To: mathgroup at smc.vnet.net
- Subject: [mg97628] Re: [mg97600] setting discrete values for a function -- newbie
- From: DrMajorBob <btreat1 at austin.rr.com>
- Date: Tue, 17 Mar 2009 05:00:38 -0500 (EST)
- References: <200903161128.GAA27240@smc.vnet.net>
- Reply-to: drmajorbob at bigfoot.com
To review, here's your code:
Clear[f];
args=Partition[{a,b,c},1]
{{a},{b},{c}}
Apply[(f[#]=0)&,args,{1}]
{0,0,0}
?f
Global`f
f[a]=0
f[b]=0
f[c]=0
The Partition instance could be replaced with:
List /@ {a, b, c}
{{a}, {b}, {c}}
But that's not needed, and the definition of f could be
Clear[f]
(f[#]=0)&/@{a,b,c}
{0,0,0}
?f
Global`f
f[a]=0
f[b]=0
f[c]=0
Bobby
On Mon, 16 Mar 2009 06:28:08 -0500, Karsten W.
<Karsten.G.Weinert at googlemail.com> wrote:
> Hello,
>
> my task is to set some function values f[[a], f[b], ... to zero. Is
> there a nicer way to do this than this one:
>
> Clear[f];
> args = Partition[{a,b,c}, 1];
> Apply[(f[#] = 0 )&, args, {1}];
>
> Especially, can I avoid calling Partition?
>
>
> Best wishes,
> Karsten.
>
--
DrMajorBob at bigfoot.com
- References:
- setting discrete values for a function -- newbie
- From: "Karsten W." <Karsten.G.Weinert@googlemail.com>
- setting discrete values for a function -- newbie