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Re: For 2014?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg132178] Re: For 2014?
  • From: Ulrich Arndt <ulrich.arndt at data2knowledge.de>
  • Date: Fri, 10 Jan 2014 02:48:52 -0500 (EST)
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  • References: <20131224071749.C3F1A69D5@smc.vnet.net> <3688DC0E-CE14-47F1-B93B-5BFA875C59E3@data2knowledge.de> <20131226112449.4994F6A09@smc.vnet.net> <644455E9-F8F1-491C-9EFE-1198A90B8FED@wolfram.com> <la606o$faj$1@smc.vnet.net> <20140107075437.D0DF569ED@smc.vnet.net>

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
>




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