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MathGroup Archive 2007

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Re: a beginner's question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg77797] Re: [mg77768] a beginner's question
  • From: DrMajorBob <drmajorbob at bigfoot.com>
  • Date: Sun, 17 Jun 2007 06:01:18 -0400 (EDT)
  • References: <30732921.1181981513900.JavaMail.root@m35>
  • Reply-to: drmajorbob at bigfoot.com

Module declares p to be a local variable, so that it doesn't conflict with  
a global p you might be using. Block and With do the same thing, but with  
different context rules. It will take a little time to get used to  
determining which you need, if any.

For ";", look up CompoundExpression -- or highlight ";" and press the Help  
key. It separates several expressions and returns the value of the last 
expression in the sequence.

Bobby

On Sat, 16 Jun 2007 02:31:31 -0500, tung tran <tunganhtr at yahoo.fr> wrote:

> I am a beginner in Mathematica and in programming. I read the book "An
> Introduction to Programming with  Mathematica".
> Page 155:
>
>  FindSubsequence[lis_List, subseq_List] := Module[{p}, p =  
> Partition[lis, Length[subseq], 1]; Position[p, Flatten[{___, subseq,  
> ___}]]]
>
> I want to know more about the role of Module function and " ; "  in  
> these lines. I have read documentation about Module function but it  
> doesn't help me much in understanding this line of code. Thanks for  
> helping me !
>
> Regards,
> Tung Anh
>
>
>



-- 
DrMajorBob at bigfoot.com


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