MathGroup Archive 2014

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Re: For 2014?


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



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