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MathGroup Archive 2006

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Re: Re: Re: Not Using a Text Editor Interface for Mathematica

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64597] Re: Re: Re: Not Using a Text Editor Interface for Mathematica
  • From: "Steve Luttrell" <steve_usenet at _removemefirst_luttrell.org.uk>
  • Date: Thu, 23 Feb 2006 00:35:24 -0500 (EST)
  • References: <dt48rf$311$1@smc.vnet.net> <200602180750.CAA23812@smc.vnet.net> <dt9irt$glv$1@smc.vnet.net> <dtc9ec$a3c$1@smc.vnet.net> <200602210331.WAA27849@smc.vnet.net> <dthhc5$nd5$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Maybe something like a "data flow" diagram would help.

For instance, if your processing looks like this

g[t_]:=f[t]-f[t-1];

then it is usually represented diagrammatically as (evaluate the code below 
to generate the diagram):

<< "Graphics`Arrow`"

$TextStyle = {FontSize -> 16, FontWeight -> "Bold"};

{a, b} = {1/10, 1/5};
Show[Graphics[{Arrow[{0, 0}, {1, 0}],
     Arrow[{0, 1}, {1/2 - a, 1}], Circle[{1/2, 1}, a],
     Text["\!\(z\^\(-1\)\)", {1/2, 1}],
     Arrow[{1/2 + a, 1}, {1, 1}], Arrow[{1, 1},
      {3/2 - b/Sqrt[2], 1/2 + b/Sqrt[2]}],
     Arrow[{1, 0}, {3/2 - b/Sqrt[2],
       1/2 - b/Sqrt[2]}], Circle[{3/2, 1/2}, b],
     Text["-", {3/2, 1/2}], Arrow[{3/2 + b, 1/2},
      {2, 1/2}]}], AspectRatio -> 1/2];

Steve Luttrell

"Renan" <renan.birck at gmail.com> wrote in message 
news:dthhc5$nd5$1 at smc.vnet.net...
> On 2/21/06, Steve Luttrell <steve_usenet at _removemefirst_luttrell.org.uk> 
> wrote:
>
>> Diagrams can suggest better ways of doing the number crunching, or they 
>> can
>> even suggest ways of avoiding the number crunching altogether; I have no
>> idea whether either of these happy scenarios holds in your application 
>> area.
>
> Most of my applications are analysis from data of electronic circuits,
> data loggers and the like.
>
> But using more diagrams looks like a nice idea, and thus I would be
> happy if someone pointed to more applications of diagrams in the area
> of Electronics and Electrical Engineering.
>
> Thanks for the ideas!
> 



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