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MathGroup Archive 2013

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Re: Output display by slide

  • To: mathgroup at smc.vnet.net
  • Subject: [mg131775] Re: Output display by slide
  • From: Tomas Garza <tgarza10 at msn.com>
  • Date: Wed, 2 Oct 2013 05:54:36 -0400 (EDT)
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  • References: <20131001102101.9E7E46A5E@smc.vnet.net>

You might take a look at the following Wolfram Demonstration, where this problem appears in a more general context:
http://demonstrations.wolfram.com/TheCentroidOfATriangleDividesEachMedianInTheRatio12/
-Tomas

> From: mathma18 at gmail.com
> Subject: Output display by slide
> To: mathgroup at smc.vnet.net
> Date: Tue, 1 Oct 2013 06:21:01 -0400
>
> a=3; b=2.5;  c=2 ;
> (*  Given triangle vertices are {(0,0),(x1,y1),(x2,y2)} = { (0,0),(a,0),(b,c) } to find CG  *)
> v1=Graphics[Circle[{0,0},{.03,.03}]];v2=Graphics[Circle[{a,0},{.03,.03}]];v3=Graphics[Circle[{b,c},{.03,.03}]];
> x1=a;y1=0;x2=b;y2=c; {XF,YF}={x1+x2, y1+y2}/3;
> CG=Graphics[Disk[{XF,YF},{.05,.05} ]];
> Triang=Graphics[Line[{{0,0},{a,0},{b,c},{0,0},{XF,YF},{a,0},{XF,YF},{b,c},{XF,YF},{0,0}}] ] ;
> bb=Show[{v1,v2,v3,Triang,CG},GridLines->Automatic,Axes-> True ,AspectRatio-> Automatic, PlotLabel-> "Centre of Gravity"]
>
> How  to vary b value in a SlideView or Manipulate, say between 0 to 4, (along horizontal line y =2) to display Centre of Gravity  like it is in GSP or in Java mode ? 
>
> TIA,
> Narasimham
>



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