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 > > > >