Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2014

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: For 2014?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg132192] Re: For 2014?
  • From: Ulrich Arndt <ulrich.arndt at data2knowledge.de>
  • Date: Mon, 13 Jan 2014 02:24:05 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • Delivered-to: l-mathgroup@wolfram.com
  • Delivered-to: mathgroup-outx@smc.vnet.net
  • Delivered-to: mathgroup-newsendx@smc.vnet.net
  • 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$1@smc.vnet.net> <20140107075437.D0DF569ED@smc.vnet.net> <lao80v$pmm$1@smc.vnet.net> <20140112073203.5EAE569D4@smc.vnet.net>

Hahaha, it's sometimes to easy to fool yourself ;-).
I was always reading this in a way that it will be done only once as it the same for all calls...

Thanks Ulrich

Am 12.01.2014 um 08:32 schrieb Bogu=C5=9B:

> Ulrich Arndt  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
>>
>
>
> =
l=Range[9];r=StringJoin[Riffle[ToString/@l,#]]&/@Tuples[{"+","-","*","/",""},8];Grid[{#,Extract[r,Position[ToExpression/@r,#]]}&/@(l+2010)]
>
> Position[ToExpression/@r,#]
>            ^^^^^ This is the slowest process. 9 times repeated
>
> --
>  Costa
>




  • Prev by Date: Displaying the solution step by step in Wolfram Mathematica
  • Next by Date: Re: Compact formulation of array of constraints
  • Previous by thread: Re: For 2014?
  • Next by thread: Re: For 2014?