Re: For 2014?
- To: mathgroup at smc.vnet.net
- Subject: [mg132194] Re: For 2014?
- From: Ray Koopman <koopman at sfu.ca>
- Date: Mon, 13 Jan 2014 02:24:45 -0500 (EST)
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- Delivered-to: l-mathgroup@wolfram.com
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Use Range@9 instead of Range[9]
----- Ulrich Arndt <ulrich.arndt at data2knowledge.de> wrote:
> Yes, this is much faster - 5 times on my machine.
> Problem is that we get 141 chars even if we replace the re by b ;-).
>
> But can someone explain the reason for the huge processing time difference?
>
> Ulrich
>
>
> Am 07.01.2014 um 08:54 schrieb Costa Bravo:
>
> > Ulrich Arndt wrote:
> >>
> >>
> l=Range[9];r=StringJoin[Riffle[ToString/@l,#]]&/@Tuples[{"+","-","*","/",""},8];Grid[{#,Extract[r,Position[ToExpression/@r,#]]}&/@(l+2010)]
> >>
> > faster
> >
> >
> l=Range[9];re=ToExpression[r=StringJoin[Riffle[ToString/@l,#]]&/@Tuples[{"+","-","*","/",""},8]];Grid[{#,Extract[r,Position[re,#]]}&/@(l+2010)]
> >
> > --
> > Costa
> >
>
>